I've been looking at web tools that let you do things with Twitter. Top of the pile is Twitterment a search engine and trend analysis tool. In a similar vein Twitterverse is a tag cloud generated from twitter posts, with links to tweets (twits?) including the tags shown. (tip Datamining)

Twittervision is a fun but rather headache inducing look at what people are posting in real time displayed on a map. Twitterbuzz looks at what people are linking to on twitter. (thanks Annie)

Finally, since the preceding post was about social bookmarks you might want to take a look at what seems to be the first Twitter social bookmarking service Twitthis

UPDATE: Also found Twittertroll
another twitter search engine.

Any other suggestions for Twitter tools welcome. I appreciate I haven't touched upon the DIY opportunities opened up by the various feed mashing services out there.

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