The professional networking site LinkedIn today launched a private beta of a new feature, Connections, that allows you to better manage your lists of LinkedIn connections. The key feature is the ability to group your connections by assigning tags to them. Once grouped, you can then send messages to the entire group simply by selecting

OK, I’ll admit up front that I am biased about this video, given that my son Ben Ambrogi produced it. And although it is addressed to educators, it is actually a useful overview for anyone who is new to Facebook. Ben produced this and a series of other video tutorials for a San Francisco-based company,