Here's what one interactive agency -- picked at random via a Google search -- suggested its pharma clients should expect from their digital agency:
As reported in the New York Times (here), "General Mills, the food mega-corporation that owns Betty Crocker, Nature Valley, and Cheerios, has "quietly added language to its website to alert consumers that they give up their right to sue the company if they download coupons, 'join' it in online communities like Facebook, enter a company-sponsored sweepstakes or contest or interact with it in a variety of other ways."
I know of at least once instance when this policy, known as "forced arbitration," could have helped a major pharma company.
Back in March 2010, a patient laid siege to Sanofi-Aventis Facebook page by posting multiple comments and photos about an adverse event she suffered (see here). Eventually, this led to the page being shout down. This patient may have sued S-A, because the company could not talk about the matter due to legal issues.