This is one the best way to build traffic for your website. In This Just We Need To submit our article links in Socail Bookmarking sites like Reddit, StumbleUpon, Diigo, Scoop.it, etc.
Link Baiting is another popular way of promoting your site. if you have copied/published another website’s content in your website then don’t forget to place their site link in your content as a reference.if your content is trustworthy , and other will copied and give you link then This is another good way to increase your link popularity.
Video Promotions is an best off page Technique. Just Make Video Related Your Product and share/publish that video in YouTube , Metacafe etc. So throw you can get Link and Also Get Some Traffic.
Note: Always keep in mind that you have to be very careful while implementing these Techniques. You should not spam or overdo it. Whatever you do, just plan and execute. Otherwise, you can see adverse effects.