Twitter monitoring and analysis tools

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During my chit-chats on RG, I discovered a very interesting problem that I didn't know existed before: Academicians from resource-deprived countries can conduct great research, however, they cannot publish their results due to the high costs of prestigious journals' page charges etc. While clearly these journals need to charge these fees to continue operating at the highest possible quality, my question is different: Is it possible that an organization can be formed to strictly allow academicians to publish in these journals, almost like a sort of scholarship? Is there any free tool for analyzing performance of particular tweets within Twitter? Is there any free tool for analyzing performance of particular tweets within Twitter?
Gephi, an open source graph visualization and manipulation software Applications Exploratory Data Analysis: intuition-oriented analysis by networks manipulations in real time. Link Analysis: revealing the underlying structures of associations between objects, in particular in scale-free networks. Social Network Analysis: easy creation of social data connectors to map community organizations and small-world networks. Biological Network analysis: representing patterns of biological data.

Gephi, an open source graph visualization and manipulation software

NodeXL: Network Overview, Discovery and Exploration for Excel

NodeXL: Network Overview, Discovery and Exploration for Excel NodeXL is a free, open-source template for Microsoft® Excel® 2007, 2010 and (possibly) 2013 that makes it easy to explore network graphs. With NodeXL, you can enter a network edge list in a worksheet, click a button and see your graph, all in the familiar environment of the Excel window. Visit the NodeXL Graph Gallery to see the wide variety of graphs that have been created by the NodeXL community. What's New The latest release enhances NodeXL's Twitter Search Network feature by expanding the network to include all people who were replied to or mentioned by the people who tweeted the search term, but who didn't tweet the search term themselves. See the Complete NodeXL Release History for details.
Package twitteR
Package tm
Package igraph
Twitter (R news & tutorials) - Part 3 Friday Links: R, OpenHelix Bioinformatics Tips, 23andMe, Perl, Python, Next-Gen Sequencing I haven't posted much here recently, but here is a roundup of a few of the links I've shared on Twitter (@genetics_blog) over the last two weeks.Here is a nice tutorial on accessing high-throughput public data (from NCBI) using R and Bioconductor.Cloud... Read more » Twitter (R news & tutorials) - Part 3
iScience Maps iScience Maps is a free Web service for scientists interested in using Twitter content in their research. This service allows one to assess the effects of specific events (e.g. a natural catastrophe or a political election) as they are voiced on Twitter. For example, make comparisons between cities, regions or countries for terms or combinations of terms and monitor their evolution in the course of an event. iScience Maps
personalwebpages.deusto.es/reips/pubs/papers/2011ReipsGaraizar_final.pdf
hootsuite analytics
Crowdbooster: Social Media Marketing Analytics and Optimization

Crowdbooster: Social Media Marketing Analytics and Optimization

At-a-glance analytics Tired of complex monitoring software? Quickly identify your most effective messages - drill down to see the impact of each Tweet and Facebook post. Recommendations
Kurrently - real-time social media search engine (Twitter, Facebook, Google+)

Kurrently - real-time social media search engine (Twitter, Facebook, Google+)

These Terms of Service constitute an agreement (“Agreement”) between you (“you”, “your”, or “User”) and Kurrently Inc. (“Kurrently”, “us”, “we” or “our”). By using Kurrently's search engine or other Kurrently services, including use of the Kurrently feeds or the website located at www.kurrently.com (collectively, the "Services"), you agree, without limitation or qualification, to be bound by, and to comply with, the terms of this Agreement. Kurrently reserves the right to modify these Terms of Service at any time without prior notice.
Tweet Grade Tweet Grade TweetGrade - n. a quantitative assessment of your reach and influence in the Twitter community. Based on your interactions with others, the frequency and content of your updates, and your overall contributions to Twitter, we assign a simple letter grade that ranges from an 'F' to an 'A+'. We're sorry, @'+response.username+'. Incomplete TweetGrades are rare, but they do happen. Since your account is protected, we are unable to analyze your tweets, and as a result, we cannot assign your account a valid TweetGrade
www.tweerank.com
TweetValue | How much is your Twitter profile worth?
Twittsdaq.com | Tracking Twitter Profile Statistics