When you use a free service, you run the risk that they will eventually try to make a profit in a way that you don't like.

"A man in Chittagong, Bangladesh...agreed to do 200 fake write-ups for $100. Within days, rave reviews for the company started popping up online."

"If you have secrets to share and can't trust the people you're sharing with, there's little technology that can help you."

"The meme about Google+ Circles is that it beats Facebook on privacy because it gives us upfront control over whom we share with. That’s true: Every time I share something I make a decision about whether to share it with the public or some of my circles. That is better, clearer, and easier than digging into Facebook’s settings once and for all to silo my world."

Gina Trapani shares what she's learned from the first 99 weeks of hosing TWiG, a great podcast covering the deeper issues of today's social media-connected world.

I've recently been noticing more quality content on Tumblr thanks to NPR, MGSiegler, USA.gov and other "serious" users, in contrast to the hordes of "F*** Yeah!" tumblelogs.

RSS is not dead.