When others stand between you and the Net....
When Wall Street banks forbid their employees to use social media, clever bankers find work-arounds, i.e., using their company-issued BlackBerry for work and their personal iPhone for personal (social) applications and communication.
The Internet may be loosely controlled in some instances, but it is certainly controlled in others. Not that that is a necessarily a bad thing, but it does suggest a new questions about who, when and how much we should control connectivity.
Policies that restrict connectivity or force disconnects often fail, or create unintended consequences. Nevertheless, there are more and more examples of corporate experiments with forced disconnects, like the BCG experiment in Leslie Perlow's book, Sleeping with Your Smartphone.