For me, this week will always be remembered as the one in which Twitter almost had a business model. It all started when Biz Stone, the same Biz Stone who said "Twitter will remain free to use by everyone ... " was quoted by the U.K.'s Marketing magazine saying: "We are noticing more companies using Twitter and individuals following them. We can identify ways to make this experience even more valuable and charge for commercial accounts." Call me crazy, but that sounds like Twitter is planning to charge for commercial accounts.

Was settling in to relax a bit on the couch last night, after a long day of blog posts, tweets and friending, when, in my nightly channel surf, I came across Charlie Rose interviewing this guy who screamed Silicon Valley: boyish good looks, a J. Crew-style sweatshirt, and graying hair that hadn't been combed since he got out of bed or since he got out of the shower. Turned out it was Chris DeWolfe of MySpace, who, with his even more boyish co-founder, Tom Anderson, was being interviewed by Rose. A few statements by DeWolfe and Anderson stood out...

I just finished scanning 28 pages of tweets from OMMA Social San Francisco, which was held on Monday. As the show's chairwoman, emcee, and chief chef, here are my five main takeaways...

Yesterday's inauguration of Barack Obama as president was, of course, a watershed event in many ways we've grown quite familiar with over the last few months. Now that it's over, and we've been able to digest Obama's speech and his wife's ball gown, let's become more parochial, and also declare yesterday a watershed event in the world of social media.

Back in November, you may remember that this column asked for tweets outlining what Twitter's business model should be. The best ideas will be presented at OMMA Social San Francisco, at a panel that will be moderated by Justin Fishner-Wolfson of Founders Fund. So now, after sorting through almost three dozen entries, it's time to tell you all who's going to present, and what their ideas are. Without further ado, save for a drum roll, here they are.

On his Micro Persuasion blog, Edelman's Steve Rubel has an excellent post today titled, "Three Reasons the Internet is Eroding Apple's Mojo." I completely agree that said mojo is eroding, but have been itching to tell you my own thoughts on this. What does Apple have to do with social media? Not much, from the perspective of its own corporate outreach, and that's at the core of the problems it now faces.