The topic of community is very much in the news this week. Many observers of Marissa Mayer's takeover of the Yahoo! CEO position are curious if she can be the savior of Flickr's long-abused (but much-vaunted) community, and questions abound regarding whether the new owners of Digg can resuscitate the community that once made it the most lively conversation on the web. I'm inviting my good friend and community expert Brian Oberkirch to share his thoughts on what makes community so important to web properties, and ask him to invite whoever he likes to try and answer one question: once the fire is out, is it ever possible to rekindle an amazing user community?