Thanks to everyone who came along to my session today. We looked at how communities (groups) could be effectively used to support projects, raise profiles, & share resources. There was also lively debate about 'the Brian Kelly effect' and how and why to pull in external content into your space on the site.
If you managed to make it along or not - you might be interested in the worksheets that take you through the process of making your community profile work hard for you (lots of tips there for your personal profiles too):
Scroll down - it's called Using Community Space