in general can be divided into three categories: pure text outside the chain, with super chain URL outside the chain, the anchor text chain. The general site has the URL of the website will be love Shanghai included, but these chain’s effect is different.
anchor text link refers to hyperlinks with keyword. This is a lot to do good keywords ranking. But it is not easy to do the anchor text, many forums can be released now, anchor text links, said to the webmaster to cherish resource on your hand gently, don’t be a title.