New data is always worth checking out. In that spirit, AllTwitter provides us with a pretty good infographic.

We were all talking about politicians and Twitter back in the Anthony Weiner days. Now UK Prime Minister David Cameron has joined Twitter (not to mention that it’s just a few weeks away from Election Day), and Social Media Today reminds us of the basics for politicians — and everyone else — on Twitter.

Ever wondered about whether Facebook Promote works? Sure you have. Ever wanted to read a case study about Facebook Promote with some actual metrics in it? Sure you have. Here’s one right here courtesy of Social Media Today.

This is sorta insane.

Over on Social Media Today, Jon-Mikel Bailey makes a lot of sense. For all the smoke and mirrors and promises and dreams and statistics and analyses and … well, look: It boils down to knowing your customer and having a communications strategy.

Takeaway for marketers: Duh.