Tweetzi is a real time Twitter search engine that is great for monitoring trends and following breaking news.

This search engine lets you sarch anonymously -- no cookies, no storing of personal data.

Search engine with great live previews to scroll through.

Search microblogs, bookmarks, comments and other content from the Social Web.

Search for a movie to match your mood. Great visual search -- like Pandora for movies.

Implications of Google's virtual search monopoly

A click-free search interface that delivers search results as you type

Wink calls itself a social search engine. It is that and more. Wink is also a community where you register to get access to bookmarking and tagging search results and adding them to thematic collections.