Before we engage in buying a product or availing a service, we try to know beforehand if it's worth the risk. Before we give our money for something, we need some sort of guarantee for that something. Often times when I want to know something about a product or service, I start blog-hopping. It's amazing how this blogging craze is contributing to the Information age. It's now very easy to find opinions about certain products or services. Take note however, that those are only opinions. Well, it's tiring to go blog-hopping because it is time consuming. We are not also guaranteed with correct information or at least credible opinions. One good thing though is the existence of review sites. Review sites are websites that contain different ratings for different products or services. Although these ratings are also opinion-based, there is a huge probability for its credibility. What's good also is that we don't have to visit different websites. A review site is a one