What is so hard about this concept? Everything is public now. Everything you do on line, everything you post, and -- unless you are extremely disciplined about Facebook use and who you friend -- what you post will become visible in your work life. Over the last week much has been written about employers asking for Facebook logins so they can investigate a candidates online presence before hiring. It's creepy, but from an employers perspective it makes sense. They want to know what liability is sitting out in the prospective [...]