I need to integrate a product rating and review feature into my company's product pages.
Rather than build one from scratch, I am exploring the options available for third party products, such as powerreviews.com. (Our site users will provide all of the ratings and reviews. We do not need to buy reviews).
Ideally, I am looking for something like Disqus where I simply accepted the default values in the administrator and added a couple of lines in my site and voila, I had an awesome comments section to each page of my web site.
What are the options to add product ratings and reviews to our site?