Médias sociaux. Un article de Wikipédia, l'encyclopédie libre. Diagramme décrivant différents types de medias sociaux Historique[modifier | modifier le code] Contrairement aux idées reçues, Facebook n’est pas le tout premier média social sur la toile. L’histoire et le développement des réseaux sociaux remonte à la fin des années 1970. En effet, c’est en 1978 que deux passionnés d’informatique décident de créer le Computerized Bulletin Board System. Ce site devance les sites actuels d’une vingtaine d’années. En effet, il s’agit du premier site ayant permis aux internautes d’échanger des informations (notes, réunions…) par voie informatique.
Distinction entre médias sociaux et réseaux sociaux numériques (RSN)[modifier | modifier le code] Les réseaux sociaux numériques ne sont qu’une autre sous-partie des médias sociaux. En 2007, Boyd et Ellison préfèrent parler de “sites de réseaux sociaux” et les définissent comme une plate-forme de communication basée sur le Web qui permet aux individus de :
RSE. Réseaux sociaux pro. Usages. Généralités. Google+ Facebook. Web 2.0 Summit 09: Sean Parker, "High Order Bit: The Rise of the Network Company" Graphs cdixon.org – chris dixon's blog. A graph consists of a set of nodes connected by edges. The original internet graph is the web itself, where webpages are nodes and links are edges. In social graphs, the nodes are people and the edges friendship. Edges are what mathematicians call relations. Two important properties that relations can either have or not have are symmetry (if A ~ B then B ~ A) and transitivity (if A ~ B and B ~ C then A ~ C). Facebook’s social graph is symmetric (if I am friends with you then you are friends with me) but not transitive (I can be friends with you without being friends with your friend). You could say friendship is probabilistically transitive in the sense that I am more likely to like someone who is a friend’s friend then I am a user chosen at random.
Twitter’s graph is probably best thought of as an interest graph. Graphs can be implicitly or explicitly created by users. Over the next few years we’ll see the rising importance of other types of graphs. Web services should be both federated and extensible cdixon.org – chris dixon's blog. One of the most important developments of the web 2.0 era is the proliferation of full featured, bidirectional APIs. APIs provide a way to “federate” web services from a single website to a distributed network of 3rd party sites. Another important web 2.0 development is the proliferation of web Apps (e.g. Facebook Apps). Apps provide a way to make websites “extensible.” The next step in this evolution is to create web services that are both federated (APIs) and extensible (Apps).
In my ideal world, the social graph would not be controlled by a private company. Consider the following scenario. With today’s APIs, if, say, Gowalla wanted to integrate Facebook plus SimpleGeo into their app*, they would basically have 3 choices: 1) Embed Facebook widgets in Gowalla. 2) Pre-import SimpleGeo data. 3) Host an instance of SimpleGeo’s servers internally. In a world of extensible APIs (or “API Apps”), Gowalla could instead send Facebook data back to SimpleGeo. The Unlit Social Graph - TNW Location. A few years ago, it was not uncommon to hear search people talk about The Dark Web (also known as Dark Net or the Deep Web). Basically, the Dark Web is made up pages or files that are unreachable by search engines.
Examples of this sort of content include information that sits behind login, or pages without inbound links. Some estimates put the Dark Web at about 400 times the size of the Surface Web (content indexed by search engines). Google has invested tremendous resources in lighting up, or indexing these hidden pieces of content. An example of their efforts was their 2008 announcement that they could now index the contents of .PDF files, a “feat that requires and an immense amount of processing power.” Why would Google do this? Flash forward to 2011. This is the unlit social graph, and this is where Facebook is vulnerable. Let’s talk examples. For years I have been looking for a solution to the pick-up basketball problem. The Implicit Social Graph. John Battelle wrote a gushing post about Color and what it means for mobile/social/local/realtime, augmented reality, and more. There are most certainly some big ideas in the Color app. I've never put a mobile photo app on my phone but I put Color on it last night.
I don't have any of my family on Color yet, but I hope to get them all on it today (I'm on spring break with my family and some of our kids' friends). Then we'll see what all the buzz is about. Regular vistors to AVC know that I am in the "many social graphs" camp and most certainly not in the "one graph to rule them all" camp. My first experience with this sort of implicit social graph came almost six years ago via my musical neighbors graph at last.fm. Last.fm uses my listening history to create an implicit social graph in real time.
This is the next frontier in social networking for a bunch of reasons. So I don't know if Color will turn out to be a big deal or not. The Social Graph Is Not Enough to Find a True Me. Les tentatives de Google dans les médias sociaux ( en 1 image ) Second Life Makes $100M A Year in Revenue [Updated] While the real-world markets take a nosedive, a virtual world's economy is on the up and up, and its parent company is reaping the rewards.
Second Life, the user-generated virtual world, generates almost $100 million in revenue a year, according to a new report on LAUNCH. A "company insider" says that Linden Lab has grossed over $75 million per year for the past three years and the company is profitable. But this isn't just another nine-digit number in the sea of Web business news. Linden Lab, the parent company of Second Life, simply charges fees on financial transactions. Its revenue comes from an entirely user-generated economy built on real estate, virtual goods and services. Yes, there's also a sex industry. The world uses a currency called Linden dollars, currently trading at about L$ 241.5 / US$ 1.00, and Linden Lab picks up a $0.30 transaction fee when users purchase currency. Second Life is a Big Place But is the Second Life Economy Sustainable?
The project. Foursquare est-il déjà mort ? Ou le triste monde tragique des se. Foursquare est-il déjà condamné ? À peine une semaine après l’annonce d’un tour de table de 20 millions d’euros, c’est la question qu’on est déjà en droit de se poser, et au delà celle du destin de tous ces services sociaux qui connaissent une hype éphémère avant de retomber dans l’oubli. Il y a quelques semaines encore, ma timeline Twitter résonnait aux échos des check ins de mes contacts, de leurs mayorships et autres badges. Aujourd’hui, plus rien ne résonne que l’échos du silence sur la morne plaine jonchée de cadavres après la bataille.
Un peu d’analyse du modèle Foursquare, et à travers lui d’une majorité d’outils sociaux que je pense condamnés non par pas manque de business plan, mais par nature. Le modèle Foursquare est un classique des services sociaux, dont le modèle repose sur quelques éléments connus depuis longtemps et que l’on peut reproduire quasiment à l’infini. Pour fonctionner, un réseau social doit attirer une masse critique d’utilisateurs. Why Entertainment Will Drive the Next Checkin Craze. In recent months, a crop of services have popped up that re-purpose the checkin concept, popularized by Foursquare, and connect it to media and entertainment, as opposed to location. In theory, the idea of checking-in to cultural concepts (like media, music, etc.) and not places is one that doesn't jive in the real-world.
It would follow then that the apps that provide this service — GetGlue, Philo and Miso — are silly and far too extreme in ideology to attract anything more than a testbed tech audience. In practice, this alternative checkin behavior is one that is more cultural and familiar than anything the location checkin offers. In fact, it emulates the way we experience entertainment in our everyday lives. The desire to share is unchanging — it's how we share that will continue to evolve with the help of social media and entertainment checkin services. The Culture of Entertainment Philo is hyper-focused on live television. The Checkin Connection Enter the checkin. Industry Matters. Foursquare Is Five Times Larger Than Gowalla And Growing 75 Perc. Editor’s note: The following analysis is written by Robert J. Moore, the CEO and co-founder of RJMetrics, an on-demand database analytics and business intelligence startup.
Robert blogs at The Metric System and can be followed on Twitter at @RJMetrics. Location-based social networks Foursquare and Gowalla are accumulating users (and headlines) with impressive momentum. While both companies have been vocal about reaching major milestones, we wanted to take a closer look at the data behind these accomplishments. For the past four weeks, we’ve been monitoring the Foursquare and Gowalla APIs to track growth rates, as well as to sample users and venues.
Here are a few highlights from our findings: As of today, Foursquare has just over 1.9 Million users. User Growth As of today, Foursquare has just over 1.9 Million users. Over the past 30 days, Foursquare averaged 12,900 new users per day, while Gowall averaged 1,370. Venue Growth Similar trends appear when we look at daily venue growth. A Private, Anti-Foursquare To Geo-Fence Those Neer To You.
If you are going to launch a new location app, creating an anti-Foursquare is probably not a bad idea. About a week ago, a Qualcomm-incubated project called Neer quietly launched on the Android market, and has been downloaded more than 10,000 times since then. Neer is a free, location-sharing app designed for private sharing between family members and people with close, real-world relationships. An iPhone app and Web interface are also in the works.
Instead of implicitly checking into different spots like you do with Foursquare and Gowalla, or broadcasting everywhere you go in the background like you do with Google Latitude, Neer creates geo-fences that trigger location updates to your inner circle. As I explained in a post last May: Somewhere in between the concept of the explicit check-in and constant geo-tracking is the notion of geo-fences. With Neer, you create a geo-fence around certain places like home, work, or school simply by marking them on your phone when you are there. Foursquare’s Next Game: Choose Your Own Adventure? Foursquare is growing quickly, gaining momentum from mainstream deals, and now they have the money in the bank to keep it up. But the big question remains: can they keep it up in the face of major competition? Twitter already has location features, Yelp recently added check-ins, and soon Facebook will as well.
How can Foursquare survive against competitors that have millions — if not tens of million or hundreds of millions more users than they do? Their answer, apparently, is to change the game. Literally. Today, on The Big Money’s Disruptors podcast, Foursquare engineer Anoop Ranganath appeared to talk a bit about Foursquare and its future. When Foursquare first started, the point leaderboard was an area of emphasis for many users — it really was a game to try and get to the top of it. “Foursquare is a game. In other words, Foursquare sounds like its game is going to shift towards a more Choose Your Own Adventure-style. If you want to learn more, click here. Stribe Opens To All And Starts Thinking About Its Own Open Graph. Stribe had a good 2009. The service that aims to make it as simple as possible for any site to add a social network on top of their existing website was first unveiled in September of last year at TechCrunch50 in San Francisco. Shortly thereafter, in December, the service won the startup competition at LeWeb in Paris.
Now they’re hoping 2010 will be even better. Stribe is opening its service to all today after several months in private beta testing. More than 10,000 sites requested access to the beta, but Stribe only let in a few hundred hand-selected ones to make sure the service worked as expected, co-founder Kamel Zeroual tells us. Stribe’s promise lies in its 5-minute set-up from scratch, and in its one line of code you need to add to your site to get things working. On top of those, Stribe has a new feature they’re launching today alongside the public roll-out: “Meta Social Network.” Tumblr Is On Fire. Now Over 6 Million Users, 1.5 Billion Pageviews A Month. One year ago, in July 2009, Tumblr was going strong.
They had 255 million pageviews that month. By November of last year, that was up to 420 million pageviews. But some new stats which Tumblr is releasing today show an explosion in growth since then. Tumblr is now at 1.5 billion pageviews a month — their Quantcast data confirms this. For the first time, Tumblr is now a top 50 site in the U.S. in terms of traffic as gauged by Quantcast. And only half of Tumblr’s 6.25 million users are in the U.S. Those users are now posting some 4.5 million posts a day — that’s up from 650,000 new posts a day a year ago. Perhaps most impressive of all the numbers though is that Tumblr is now growing by 300 million pageviews per month. Speaking of half of Tumblr’s users being outside of the U.S., the service is launching each of their themes in 5 languages starting later this week. Below is the Tumblr premium Scaffold theme in Japanese.
Google veut se mesurer à Facebook avec Google+ Google a dévoilé hier son « Projet Google+ », sa tentative la plus aboutie pour rivaliser avec Facebook. Il s’agit donc d’un réseau social qui se compose de « briques ». « Sur le web, dire la bonne chose à la bonne personne ne devrait pas être un casse-tête. Partager ce que vous voulez avec qui vous voulez ne devrait pas être une épreuve » écrit Google. Des fonctions groupes, recommandation, chat vidéo et photos Tout commence avec les Cercles qui permettent de répartir les contacts selon ses affinités. Il y a ensuite ce que Google appelle les Déclics que l’on pourrait qualifier de système de recommandation de contenu basé sur les centres d’intérêts définis par un membre. Les membres d’un cercle signalent leur disponibilité pour participer à un chat vidéo et sont avertis si une session est en cours.
Google+ sur mobile est déjà disponible sur l’Android Market et il est annoncé pour bientôt sur l’App Store.