1SearchEngine.com is a unique web 2.0 homepage that offers a clean and customizable way to search all the major websites.

Comes with 178 Facebook likes and PR2 Domain.

Facebook and Twitter login supported.

Can be monetized with affiliate links added into every search query. Example: adding "&tag=yourtaghere-20" to all searches done with amazon.
No bounds on what niche can be monetized with this site.

Site has not been heavily promoted.