I have no interest in using Twitter or Facebook for privacy reasons. Most people don't understand just how pervasive the data mining is. Every time you go to a web page that includes the little "like me" buttons or has a Google search link, or other reference to some other service, it usually means that your browser had to go to that remote web site to retrieve some data, maybe just the logo. But the remote web site can capture your IP address, possibly your MAC address, and anything else it can request from the browser, and put it together with all the other info they can capture, retrieve or deduce, to build a profile of your browsing habits. Maybe they left a cookie on your system from the last time you were there? Depending what sites you frequent, they may be able to link it to you as an individual instead of just a general age bracket and gender. It is pretty much impossible to avoid completely, but I don't have to ask for it by joining Twitter or Facebook. And then of course there are the people who do everything but post their social security number on the web site.... Doug.