Building back links to your site or blog is the bane of my existence, some days. It takes a lot of work and research. Just when you're exhausted from updating your sites with good content, you have to start building backlinks to your articles and to your main website or else nobody will find you in cyberspace!
Fortunately the geniuses over at SEO Noob have published a list of 104 easy ways to build back links to your site.
I've posted a blog entry at my main blog about building back links and there you'll find more info about how to get this free link building tip sheet:
Some Easy Ways to Build Backlinks