I used Keepstream.com to curate the 'meatiest' tweets from Shop.org Summit 2010, which just ended today. It was another great show. Over 3,000 attendees! Social, mobile, and local are still hot themes as they were last year...because few retailers have figured them out. I led a couple roundtables on social commerce and social media ROI. However, other discussions around the show suggest there's a lot of money to be made getting the basics right...email, SEO, SEM, content, testing/targeting, and customer service.