SERP's Not shifting!

ok, so I have been stuck in 10th on Page one for about 4 months..... no matter what I do I cant get it to shift any higher.....

I have done the whole bookmarking, articles, directories, blog commenting etc but it will just not shift...

Anyone got any suggestions? WHat else can I try?

Try some more backlinks. Surely, it will help a lot.. similarly, if you can give us URL then we can see if any on-site optimization still needs to be done.

What are the nine sites above you doing? Have you researched their marketing strategies? Items to consider include:

1. Identify which sites are linking to them and work on getting the same links to your site.
2. Type of content on their site (articles, video, audio, etc.). Work on matching the type of content they're including. Be sure to have at least the same amount of content as well.

I am competing against some big blue chips here, so pretty impressed that I hit first page....