I really enjoyed this post on Blog Oh Blog (who created the template I use for TheCartBlog.com) discussing link building. The idea behind link building is to increase the number of hyperlinks on other sites to your site. This makes your site easier to find, increases traffic, and can increase your Google PageRank.
My favorite commandment was number 4: Web Directory Submissions. To expand on this just a bit: if you Google “<your keywords> directories,” you will find directories who will accept link submissions. Typically the only price they charge is a backlink to them from your site, so it’s a very inexpensive way of building links.
There are also a ton of link building ideas in Dawud Miracle’s post 15 Amazing Interviews About Link Building.
