Yes, it is an opinion on the internet; but, the number of people who use the e-pinion give it veracity as opposed to just looking at a movie review, for instance.
Epinions are submitted by consumer users to show how they feel about a product. It's someones review of something that gives other advice on buying products. It is pretty much just someones opinion listed on the internet.
Yes, e-pinion is just that, opinions from people on the internet. Of course, there is a website called epinions, but then that's getting into the chicken and the egg argument.