The internet is a wonderful invention that gives us instant access to information on any and every subject we can imagine. In this case, that would be auto warranties. If you want to find extended auto warranty reviews for the company you're thinking of doing business with, you are likely to find plenty of examples online. Here's a sample of what you'll find, and how seriously you should take each report.
Blog posts. In this day and age, anyone can put up a blog in just a few minutes with nothing more than an email account, a free blog hosting site, and a few half-formed opinions. While there may occasionally be a good blog post, filled with solid research and factual information about companies in the extended auto warranty business, there are just as many - if not more - blog posts devoted to rumor, innuendo and insults. Take everything you find here with a grain of salt, both positive and negative. But don't dismiss the opinions outright - if the posting was done by someone with personal experience, you can glean out useful facts, even if the post is mostly gripes and complaints.
Rant websites. These are quite a bit trickier to set up, and by extension, they are usually that much more slanted either towards the positive or the negative. These sites should be considered a little suspect as far as providing relevant and useful information. Usually, these sites are the product of consumers who feel that they have been wronged in some way by the company, and so the information they present will usually feature more negative sides. But don't dismiss every criticism listed - some of them may have some merits to them.
Corporately posted articles. A company that sells extended auto warranties may have articles of its own posted online. These can range from glorified public relations and marketing ad copy to serious discussions about the state of the industry. It never hurts to read through these articles, but keep in mind that an article hosted on a corporate web site will have a spin of its own.
Independent review sites. These are probably your best bet as far as extended auto warranty reviews go. They are usually ad-revenue driven, but the best ones will not accept ads from the industries they review. This allows the site to remain completely neutral, and provide its readers with the best possible advice. Again, no internet site should be used as the sole source of research for a company - but these pages make for a good start.