TameBay was founded by Chris Dawson and Sue Bailey, two British PowerSellers. Between them they have traded on eBay for nearly two decades, and have more than 50,000 positive feedback comments (and just 2 negs!).
This is a massive resource for eBay, the does and don'ts. They have resources and links to the GoofBid Tools. If you are going to use eBay you should visit this site. At first its use is not that obvious but it will become clear.