Chart: How Many Users Does Twitter REALLY Have?

It seems that “175 million users” may be a bit of an exaggeration. This article estimates the number of active Twitter users to be closer to 56 million. Although the math is a bit shady, it’s interesting to see the thought process that they went through.

Bonus fun fact:

At Facebook, a company source tells us, they believe that a user is not going to end up sticking around unless they make friends with 10 people.

The Top Six Innovation Ideas of 2011

Contests, interactive content, innovation labs, promotions… it all comes back to interaction design for a truly connected society.

Social Pro

Interesting mashup of email marketing & social networks. I kind of want to try this on myself hah.