Powerset is a search and discovery experience for Wikipedia, launched in May 2008. Powerset’s technology improves the entire search process. In the search box, you can express yourself in keywords, phrases, or simple questions. On the search results page, Powerset gives more accurate results, often answering questions directly, and aggregates information from across multiple articles. Finally, Powerset’s technology follows you into enhanced Wikipedia articles, giving you a better way to quickly digest and navigate content.

This is a mashup of Last.fm and YouTube made by Tim Bormans. It’s best described as an online music television based on your taste. Check it out here.

Down for everyone or just me is a quick and easy tool to check if a site is down for everyone or just you.

Presdo takes the hassle out of trying to find the best time to get together with people. Use Presdo to minimize the annoying ping pong of email, texting, and voicemail when organizing the next team lunch or trying to grab coffee with a friend.

Grooveshark is an online music community that rewards you for sharing, reviewing, and discovering new music. You can listen to any song in it’s entirety, even if you don’t own the track. You can earn credit toward free songs by sharing music with others. You can socialize with others by discovering, recommending, sharing, and downloading music without restriction.