After you install the software, it integrates directly into Outlook 2003, 2007, and 2010. It runs as a new pane at the bottom of Outlook's messaging window. The pane serves multiple purposes. It shows you their latest updates from LinkedIn and Facebook. Microsoft Outlook Social Connector shows all of your communications with the person--all the emails, attachments, and meetings you've had with them. It lists them by type, so that you can see all emails, for example, all meetings, all attachments, and so on. The list appears instantaneously. It's a superb tool even if you don't use the social networking part of it, because even without that, it shows your email communications with the person. It's similar to the free add-in, and not quite as powerful, because it doesn't offer Twitter support that Xobni does.

One thing missing is that you can't post updates from Outlook to social networking services--post an update to Facebook, for example. Still, Microsoft Outlook Social Connector is a very useful tool, one which every Outlook user should give a try even if they don't use social networks.

Note: This link takes you to the vendor's site, where you can download the latest version of the software.