Hi there, try making a link wheel, if you do not know how to go about it, i try to explain in few steps, 1- choose 4-5 web 2.0 websites like squidoo, hub-pages, weebly, blogger, wordpress, set your accounts on these sites and make pages to begin with use articles you have already written to make these pages, use proper keywords with density 3% which you want to promote.
2- now link each of these sites to your site individually, it would be great if you use html links within content.For eg: you have a site which is about education, and you have wording in your content higher education, then you can use this wording to link using html code.
3- now using same technique of linking, link all these sites to each other in circular manner link each site to other but do that backlink them with each other, like link weebly to wordpress, wordpress to squidoo, squidoo to hubpages, hubpages to blogger and blogger to weebly.
4- this will get you lot of backlinks.
hope this helps you
