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Find Three free places for you to get backlinks.
Search in Google for
- Add URL
- Submit URL
which will often give you directories to submit your site to for nothing.
Also you can find comment sites that fit your needs for you offer commentary for a link by typing into Google Blogs simply your topic and comments. You will have to sift thru some of the blogs that are not useful. But htis will give you a big list to find sites to offer your opinion.
This can give you traffic and links.