Torka has some really great suggestions! Along with the suggestion of blogging and possibly having a site link back to you when you've linked to them from your blog post, I would suggest that when you link to someone's site or article from your post you contact them to let them know that you've linked to them, don't expect them to just stumble upon it. This might help generate a link back to your post or perhaps they will Tweet it or post it on Facebook.
When you've written a really great post that is helpful to people you can contact other blogs and let them know about your post and ask that they share it with their readers or Twitter and Facebook followers if they like it. This can be a little time consuming but it gets your name out there and works to build community, it also might get you a few links.