These are my links for October 23rd through October 26th:

• Social Games: How The Big Three Make Millions – Article on Synga, Playfish and Playdom – how they've raised revenue and are valued, but there's a dark side: much income is from 'lead generation' rather than direct subscriptions from players. I wonder if, like many casual games aps, social gaming will become an activity that can only survive in a free-to-play ad-funded model.
• 5 Small Businesses Successfully Using Social Media – Still proving limited ROI from these examples, but Mashable show 5 smaller businesses making inventive use of social media to grow audiences and sales. I particularly like the Tweeting Korean Naco truck in Los Angeles.