If you like looking for reviews before trying products, then there is a new site that seems to be doing quite well: ReviewFrog.net
The site covers a variety of products, and their digital camera reviews looking to be most popular. We can see reviews of new Blackberrys, Software, EBooks, etc.
You can ask for reviews of products or services you want, and they could arrange them. Not sure if they sponsored reviews, but you can check with them.