Numerous social media sites have witnessed explosive growth of their user bases in the last several years, but it’s a known fact that the type of user a site attracts varies greatly. Have you ever wondered which sites attract the most educated of social media users, or those that pull in the highest income? Below we map the demographics of the world’s most popular social media sites.

Read more: http://www.flowtown.com/blog/social-media-demographics-whos-using-which-sites#ixzz15SR9Nn2g

“It takes 20 years to build a reputation and five minutes to ruin it. If you think about that, you'll do things differently.” Warren Buffett

The fact that Joiners continue to grow means marketers must continue to focus their attention and budgets on social networks in 2011. More people will spend more time and get more information through social networks, and where consumer time and attention goes, so will marketer investment.

Once was time that people scoffed at Toronto's Miles Nadal and his MDC Partners as he audaciously bought up advertising agencies and other interactive shops in the midst of massive shifts in the way companies manage their brands. Well they're not laughing at him anymore, as his crown jewel Crispin, Porter Bogusky competes with the top agencies in a world of huge multinational advertising conglomerates.

But what's more interesting is his latest fascination with buying up PR shops.

Clearly written article in The Mark that seeks to set the record straight the fears that there's a perilous void left as new media challenge the traditional news organizations.

It's always great to find good tips on pitching to bloggers. Here's a short article on what not to do.

Web Coupons Know Lots About You, and They Tell

Interesting article in the Orlando Sentinel on the downside of social media engagement in light of the death of the trainer at SeaWorld. It will be interesting to see if the organization fights the urge to pull back on its social media program, as having worked to build a social following, this dialogue may play a critical role in SeaWorld's ability to navigate through this difficult period.