Has anybody tried bidding on common mis-spellings of their keywords and long-tail keywords and if so whats ort of results did you see?
Sometimes, long tail keywords may be necessary to concentrate on. The reason might include: There is too much competition in your short tail keywords. Although long tail keywords might not generate as many searches as short tail keywords, you stand a greater chance of being shown in SERPS (search engine results pages). Where as with short tail keywords, it might be very hard to compete and get a place in serps.