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http://danzarrella.com/retweets-change-everything.html I spend a lot of time working on ReTweets, mostly because I believe them to be one of the most important developments in modern communications, extending far beyond the Twittersphere.

ReTweets Change Everything | Dan Zarrella

Did Twitter Really 'Outshine' the Mainstream Press?

We love Twitter just as much as any tech bloggers -- that should be clear to anyone who has read this blog over the past six months. But stories like this one from the AFP are a bit rankling. http://www.readwriteweb.com/archives/did_twitter_really_outshine_th.php
http://mashable.com/2009/04/08/status-update-history/

A Brief History of the Status Message

Every time you change your status on instant messenger or send a tweet, you’re taking advantage of the simplicity and power of status updates. How did status updates begin and how have they evolved since their first iterations?
CIO — How influential are you on Twitter? That's what several sites are now promising to judge, labeling you by doing everything from calculating your "social capital" to knocking you for a "low Twitter efficiency." These Twitter ranking sites vary in how calculations are made—some basic sites rely solely on the number of tweets, retweets and followers, while others use more complicated algorithms to determine results. http://www.cio.com/article/515966/Got_Twitter_Clout_New_Tools_Rate_You_

Got Twitter Clout? New Tools Rate You - CIO.com - Business Techn

Is Twitter a Mental Vacuum?

http://www.readwriteweb.com/archives/is_twitter_a_mental_vacuum.php When we talk to our less technologically-inclined friends about Twitter , we often run across the objection that they really don't care what so-and-so ate for lunch today or what movie they are seeing tonight. And every time, we try to extol all the other benefits of the world's most popular microblogging service. But could we be wrong?
Facebook and Twitter are, of course, increasingly trying to prove that they can be real, self-sustaining businesses with meaningful revenues, and maybe even consistently positive cash flow.

Be Honest: What's Your Real Twitter and Facebook ROI?

http://www.businessinsider.com/be-honest-whats-your-real-twitter-and-facebook-roi-2010-1?amp;utm_medium=feed&utm_campaign=Feed%3A+businessinsider+%28The+Business+Insider%29&utm_content=Google+Reader

Lo que no sabes de Facebook y Twitter. | gabycastellanos.com

Estoy preparando unas presentaciones/charlas que tengo la semana que viene y me encontre con un monton de información que quisiera recopilar para vosotros y que de seguro os pueda servir para algo. Empiezo por el bueno y querido amigo Facebook… Facebook http://www.gabycastellanos.com/lo-que-no-sabes-de-facebook-y-twitter/
http://www.mediabistro.com/10000words/7-amazing-twitter-visualizations_b363

7 Amazing Twitter visualizations

This stunning video visualizes Twitter users around the world who tweeted the phrase “good morning.”
Facebook yesterday turned on a bunch of new features on its news feed ( here is TechCrunch’s writeup of the new features ). http://scobleizer.com/2009/10/24/the-biggest-difference-between-twitter-and-facebook/

The biggest difference between Twitter and Facebook

When did you join Twitter?

http://yappler.com/ We picked the most useful utilities apps that every iPhone and iPad should have. From an alarm clock that can be turned off with a wave of your hand to a tracking app that lets you stay in-the-know of where your family members are.
I don't have all the guidelines for stream-based postings yet, because we're still conducting usability studies (update: the study is now done .). But, based on the user sessions I've observed already, I put this posting through 5 rounds of iterative design .

Twitter Postings: Iterative Design (Jakob Nielsen's Alertbo

Trendistic - see trends in twitter

The colored areas represent periods of time in which the topic was hot, the darker areas show the time with the most mentions of the topic.
A Manifesto I believe in Twitter . I believe people want to use it and that it is useful to them.

Why I Don’t Use Twitter

What does it do? Enter a word in the search box and then catch some birds with your mouse to read the tweet they're carrying. Tori's Eye fetches the latest tweets containing the word you input from Twitter Search.

Tori's Eye