Hey members I am doing back links, Content is the key with Google also forum posting.
What you guys do any more idea.

i dont think so that back your forum signature links will help u to get SERP in google for any keywords.it will help u to get more and more back links that will help u to get more PR.if u want to get good ranking than do some article submission and get some trusted links.that will more help u.

Also build better content on your own site.

Means you can submit articles to get backlinks but also write unique and keyword relevant articles and content for your own site.

Do the classic way of link exchange. Rather then just depending on one way to get backlinks.

Get blog posts out if you can. Tell some other webmasters to review your site in their blogs. In return you can also write a review for some sites of theirs on your own blog.

Keep away from linking to bad sites.

Submit sitemaps to get your pages indexed. Because without pages in index there will be no SERP's thing for your site.