There are some rumors circulating at TechCrunch and throughout other sites within the Silicon Valley rumor mill that Facebook is undertaking some kind of [email protected] at work project. Although Facebook provides no comments on rumors, speculation surrounding this is that Facebook would design tools to more conveniently allow people within businesse to use features like Messages and Groups to more easily share work information. This could be helpful for many people in providing a better Yammer alternative. But this could be more about preventing businesses from blocking Facebook at work. If some measure of plausible deniability exists that employees can use Facebook for work related tasks, it's probably a way that people can get IT Departments to not bother with blocking Facebook usage. And that would be another good bit of news for Facebook.