NowPublic launched an interesting new feature called Scan. First, they aggregate data from sites like Twitter, identi.ca and Pownce in near real-time. Then they aggregate the information, filter it by keywords, geo-locate it, and conveniently present it on a dashboard. Like that, you can see what is happening in different places around the world.
Being the sucker for statistics that I am, I asked Michael Meyers (CTO, NowPublic) to setup a special NowPublic Drupal Channel so that we can have our very own NowPublic Drupal Scan. Michael did, so check out the Drupal Scan at http://www.nowpublic.com/tags/drupal/scan. It is a great showcase of what can be done with activity streams or lifestreams, and with Twitter data specifically. What is not to like?
(Disclosure: I am an advisor to NowPublic.)