The easiest way is to get paid links. You can try to automate the backlink process and build thousands of backlinks, but the overwhelming majority of those links are absolutely worthless (like the one in your signature). Buying just a handful of quality (high Page Rank, relevant, dofollow) backlinks is more beneficial than the thousands upon thousands of low quality backlinks that can be generated in bulk.

It goes without saying, but we offer 3 FREE high Page Rank backlinks. All you have to do is fill out our special order form found on the homepage of this site. If you want more than 3 backlinks, you can always pay for additional high quality backlinks at a bargain price.

By the way, I reran the report for the URL in your signature. It wasn't showing backlinks before when you ran it because you left the "www." in front of the subdomain – which always should be removed if you're checking a subdomain. It's now showing backlinks.