From Jill Whalen’s 18 SEO Killers You Must Clean Up and Avoid for 2013:
Forget about old-fashioned link building. Google now really does consider it to be web spam. (Yay!) If you can add a link to your own site just by submitting it somewhere, you can assume that it won’t count for much (or anything) by Google. In other words, forget about useless directory submissions, article directories, link wheels, forum signatures and comment spam. That’s all done, kaput, a useless waste of time.
Instead, hire real writers and put them to work writing blog posts and other informational content on a regular basis. Be sure that what they’re writing is truly of interest to the people who might buy your products or services (aka your target market).
