Six Degrees - timefreeing technology
This weeks mailing from Tidbits had a link to an interesting piece of software. Basically, Six Degrees watches your email activity and then builds a database of links between conversations, project and people. This database then allows you to more easily find information based on these relations.
I get a sizable amount of email, so I am installing the 30-day demo to see if it can make my online life any earlier. You might want to check it out for yourself.