Social Search with TwitterBar
TwitterBar offers a realtime search engine called OneRiot. OneRiot crawls the links people share on Twitter, Digg and other social sharing services, then indexes the content on those pages in seconds. The end result is a search experience that allows users to find the freshest, most socially-relevant content from across the realtime web.
If you install this search engine, it will appear in your search bar:
You can always switch between search engines just by clicking on the icon in front of the search bar:
You can also search directly from TwitterBar; just type your search and then type --search.
Or, you can search by clicking the magenta icon that appears when you hover over the TwitterBar icon in the address bar.