Building a social media following by giving things away

Many organizations are building a social media following by giving things away --
http://www.socialmediaexaminer.com/5-ways-to-build-a-following-by-giving-something-away/

This comes from "Social Media's Big List," which is published by SocialMedia.org. You can sign up for it at:
http://www.socialmedia.org/biglist/