Publishing press releases is another good way to get quality inbound links to your site. Press release sites are typically high PR sites too. You also have the chance that, if you are doing something news worthy, your story could get picked up by media outlets.
Remember, this does not have to be something worthy of making the 6 o'clock news. Anytime to create a new page on your blog, a new Facebook fan page, or anything you do that is new, write a press release about it.
There are dozens of sites for posting press releases for free. There are even a few that cost a little money as well as paid services that will broadcast your press releases for you and help you manage your brand presence.
Writing press releases is a bit different than writing articles. I suggest doing a Google search for "how to write a press release". You will find more than enough information on the topic.
Tomorrow will be part 4 of 5 in this baclinking series, posting on Q&A sites.