Groups granted tax-exempt status under section 501(c)(4) of the tax code are allowed to engage in some political activity, but their primary focus is supposed to be promoting social welfare.

WSJ: Chiefs at IRS Knew of Targeting

Tax-exempt social-welfare groups organized under section 501(c)(4) of the Internal Revenue Code are allowed to engage in some political activity, but the primary focus of their efforts must remain promoting social welfare.

WSJ: Wider Problems Found at IRS

In a piece for MarketingProfs earlier this year C-Level Exec, Improve Your Brand Image by Using Social Media I wrote about the results of a CEO survey conducted by BRANDfog which revealed the ever-growing importance and need for c-level suite folks to use social media as a means to engage its customers and prospects alike and to earn their trust in the process.

FORBES: Is Your Brand Trust Worthy?