Ok ... I'll be the first one as I have been working with friends on a site that I use all the time and find helpful.
If you do a lot of searching and are tired of the constant clicking back and forth between Search Engines, check out www.ButtonAll.com.
I've added a few Otaku related channels ... you can customize the rows of search engine buttons. There's no sign up or anything ... check it out if you like.
P.S. Yes a shameless plug Feel free to plug your own stuff