Hi, everyone, now I have some problems about my site, I need update my link building to my site, but I don't know how to distribute the ratio, like web directories, forum and article directories, press release, social bookmarking, or link exchanges? Could someone tell me? Thanks.
There is no exact formula about the ratio of link distribution. You need to do an experiment in link building. Vary link building methods and also anchor texts.
As himanuzo said, there is not exact formula for this. Otherwise all we'd be millionaires. I'd suggest you to focus on creating quality backlinks rather than high quantity of backlinks. Try to diversify as much as possible your backlinks sources but focus on creating contextual quality backlinks(like press releases, guest posts and etc. on high pr sites). Also use general anchors, LSI keywords and secondary keywords.