An online, sharable, rss-feedable calendaring tool. Also allows tagging of calendars and events. For public events but also to create and share calendars with friends and family... hmmm...
Another take on how to organize/file paper... this one targeted on getting rid of stuff you don't use on the justification that you haven't used it in a long time.
A tool that lets you do a text search of pages linked by the page you specify, so basically a search of a subset of pages if you use the url of your delicious tag page.
simpy
