Hi,
Try to build links using Submissions to Directories for SEO purpose
You can go and find some directory links for FREE from
http://www.directorycritic.com
or
http://www.onewaytextlink.com
or
http://www.resellergo.com
or
http://www.digixmas.com

I have heard some them allow directory submission service also for free, i have found that directoryvault and resellergo allow free and paid link building via directory submission and also keyword based selection

Thanks,
Ted