The first two are the brainchildren of my friend Luis Figueiredo (T/B), Alpha Twitter and TwitSpam.  The first shows which individual URLs have been shared by the greatest number of users, a good way to check what is hot right now online.  The second does the reverse, showing the top single URLs “shared” by a single user spammer. Although you can always choose not to follow anyone, it’s a good way to see who is trying to use twitter as a “spamming” platform.

The two other applications are Tweet Clouds and TweetStats.  The first generates on the fly a word “cloud” based on the frequency certain words are used on a certain user’s (public) twitter timeline.  TweetStats collects a certain user’s twitter timeline on the fly to generate statistics of when, how, and to whom we tweet.

With twitter being the most used “micro blogging” platform, all these applications give different insights on the community and individual users and how they use the system.  If you don’t know what twitter is, click here.