1. Post a thread on a forum. Thread title contained targeting keyword. Not yet adding my backlink. 2. Just leave my post for 3 ~ 4 hours. 3. After 3 ~ 4 hours, add backlink on to my post. Thread modify or write a comment. I have some reason for to do this strategy. I would like to explain about my reason. But i'm not good at English. Does it work? Forum indexed by Google in 10 ~ 20 minutes. really fast... Sorry for my English.