One example of a popular online consumer complaint community is the website CarComplaints. This site focuses on automotive complaints, compiling them by brand, model and year of vehicle.
CarComplaints is an online community where car owners report problems with their vehicles and the repairs that were required to fix the issue. In addition, CarComplaints compiles National Highway Traffic Safety Authority reports of issues with vehicles. The site uses both consumer complaints and these reports to assemble a comprehensive profile of the most common problems with a given vehicle, as well as the worst problems in terms of potential severity and cost for each car in their database.