Hi, Google and Yahoo have both imposed a penalty on one of our sites. What do you feel are the potential things you could do wrong to not cause a ban but penalise your SERPS and make nothing rank at all except the name of the company even with 10k backlinks and 4 years old... Duplicate content? Bad outgoing links? Bad incoming links? Anything else? Yahoo said there was something we were\are doing which was against their quality guidelines, but they wouldn't say what it was! Thanks