Hear what you want to hear on twitter
(note: I didn't find a better way to place links into this post - sorry about this.)
If you want to listen or join conversations related to your interests on twitter, you may be looking for a tool that could help you filter what you need to hear before you start listening.
This site [ http://search.twitter.com/ ] enables you to monitor, find, subscribe and then capture and refine your search results with your rss reader [ http://en.wikipedia.org/wiki/List_of_feed_aggregators ].
If you haven't already tried using it, you may want to test monitoring interests, wishes [ http://clipmarks.com/clipmark/7CF14EAA-4B83-4A81-99A3-04D3D30D9AB6/ ] or large amounts of problems [ http://clipmarks.com/clipmark/B3BEEF36-4A4D-41CB-97E5-66C5C0A3C6C2/ ] that still haven't been solved yet.
After all, there is so much to learn from the things that still don't work.