I am working for the Mobile Development Experts. I am doing blog posting, forum posting, blog commenting to get the SERP of the keyword “iPhone application development”. Back links for this page is 27. But, I can’t understand why I am not getting the result. Can you suggest me some idea for this. My link for this page is http://www.mobiledevelopmentexperts.com/iphone-application-apps-development.html.
The quality of the links is not very compelling for it to rank better. Apart from that your on page content is almost NIL
To get high ranking on SERPs it is not enough to work only in forums and blog. You can increase your backlinks from various SEO techniques. You can do maximum in search engine optimization but you can't forget about relevancy or quality. Because search engines only considering quality backlinks to your website.
Actually the result of SEO to a particular keyword or phrase is relating to the time, competition of particular keyword, keyword density in your site, occurrence of keyword in meta tags etc. You have to use the Keyword as anchor text for backlinks and as title in bookmarking.
I think now you should try Article submission, social bookmarking sites. It should be noted that their are high PR site.
take relevant backlinks like technology sites, hosting, software having good pr and the unique content will help you to get rank.