My Sites are the part of SharePoint 2007 that is most directly in competition with web based social network applications.   In terms of useability and dynamism they don’t stand up too well in comparison with the likes of Facebook, Twitter and Linked In,  but they do have an important role to play in a SharePoint implementation.   A key point of interest when SharePoint 2010 is unveiled next month will be the extent to which Microsoft attempts to provide a more intuitive social computing facility within SharePoint. My Sites provide an individual with three key benefits: the ability to display information about themselves to colleagues, through a profile and, if they wish, a blog the ability to store documents in document libraries, and…