This is a social bookmarking site, that I intend to optimize, and this gave me a lot of stress. In these efforts I could not. The question is unclear to me, so I do not know what could be the problem. In some other link building and SEO strategies, do you know any more things to try? I have not been able to achieve success in this task, and it is very disappointing. I cannot see the PR, and I do not like that. I have been involved in the construction of the connection is what is proposed. Any suggestions?