Promoter should be to master relevant knowledge about web site or the content
 

If I is to promote a car BBS of words, I should be a car has enough to know, even if it can't thorough understanding, at least should also know a ballpark. It is needless to say, you can't let a even the Internet are all don't know the person to promote the Internet products! Therefore, in the selection of the promoter, please make sure whether he has this quality.