Angie's List is a site set up for consumers to review service industry professionals so that you can see for yourself if they do good work, show up on time, or have run off with someone's money. After a customer has reviewed the person or company, those companies are given copies of the reports and are allowed to respond to the reviews giving you two sides to the story.
In addition Angie's List members can only report on a company once every 6 months so that reviews are honest and not stacked for or against. As well the sites staffers look for irregularities or red flags in reporting. According to the site: Occasionally, we can catch service companies reporting on their own businesses. Those companies are reprimanded and the reports are promptly and permanently removed from the List.
In addition to home repairs the also offer Auto, Professional service reviews such as event and wedding, as well as accountanting and lawyers.
Sadly, Angie's list isn't free so it seems as if it would work best if you were doing large or extensive repairs on homes, or if you had just moved to an area and needed service providers it would be very helpful. Costs range from $6.95 month, or you can purchase up front a year at 53$ or two years for 95$.
Check out AT:SF's post about it here.
If you have used Angie's list we would love to hear your stories, since we're not signing up we can only see bits of the site from the outside perspective.