Here is a list of ten sites that aren’t very well know but should be (according to eWeek).
http://www.filestube.com
Search and download files from file sharing and upload sites.
http://www.gosasa.com
Find free online classified ads of all kinds.
http://www.chizmax.com
Search for song lyrics and videos.
http://www.burrp.com
User generated urban lifestyle guide, find the best restaurants and night spots anywhere in the world.
http://www.peoplefinder.com
Free people search.
http://www.weshow.com
Find online video.
http://www.gettalink.com
Growing catalog of 2.0 search tools on the Web.
http://www.searchcrystal.com
Visualize search results.
http://www.gnosh.org
Search large media sites as well as social search engines.
http://www.tafiti.com
A new search engine for doing research on the web.
These are some very cool sites, check them out when you have a chance.