Think of social media as the Internet. I can't think of anyone betting against the Internet in 2012.
I don't know how you can justify leaving any engagement behind in the social Web of 2011.
Adding a social layer to any platform immediately increases its effectiveness.
Social marketing is now a 24-7 job.
Good salespeople sell value and social media is the best place to find this value because of its transparency.
Social media is not a fad because it's human.