(3) to ask in the forum. If you cannot find a way through the normal website optimization services, you can select the message through the forum by the way of screening. Of course not all messages are honest. So you need to comprehensive analysis, but for the choice of who is really a reference direction.
(6) of their own website PR value check if their own site optimization PR are not up to more than 4, so they can choose to give up.
(9) to see whether they are before the use of black hat Shanghai Dragon technology should learn the black hat Shanghai Longfeng knowledge, whether they use the black hat Shanghai Longfeng technical judgment, if this were found in the search engine, is also regarded as cheating processing.