Download Netopi

Editor: Netopi is a way to add and read reviews of any website: An item in an online shop, CNN's article, hosting Company offer... and it doesn't matter whether a possibility of leaving a Review is or is not given by the owners of those websites.
If you want, you can see reviews and add your own right now, without installing any software.
If you're using Firefox, then Netopi Firefox extension is a much better choice
If you are using a desktop version of Netopi:
When the application is running, it's watching Firefox and Internet Explorer windows, and every time you visit a website Netopi displays reviews of this website as well as enables you to add your own opinion.
The opinions are stored in a central database, not related in any way to the owners of those websites, and so, they are under no control of the owners. You can use the "Active" checkbox to turn on/off Netopi activity.