techblog

Tools I do like:

last.fm — Using their audioscrobbler technology for collecting information about who's listening to what they've put together a front end that can track what you're listening to and allows you to tag tracks. They also have a collection of music available that they can stream to create a custom radio station. Their selection seems to be more limited than Pandora but pandora has no community aspect - it's all based on raw musical similarities and musical tastes aren't about raw data. This has helped me find a number of bands I didn't know about, so it's certainly doing it's job there :)

Hiveminder — Online todo-list from the people who put together the Request Tracker issue tracking system. I've been a big fan of RT for a long time - but it can be a bit cumbersome for todo-list management (I use it for exactly that tat work). Hiveminder is a collaborative public todo-list manager. It's only just launched, so there are bound to be teething problems, but so far I like it.

http://del.icio.us/ — One of the definitive 2.0 apps community bookmarks. Essential.

Technorati — Got a blog? Get a technorati account. automatically find out who is linking to your blog, and let people know you are linking to theirs. Essentially this is community trackbacks, but more than that.