Why Facebook Remains the No.1 Social Platform for Brand Building

When Twitter's S1 filing came to light last week, one thing became perfectly clear: Twitter is no Facebook. The microblogging platform trails Facebook in every key metric and will likely never reach the same level of adoption that Facebook has reached over the past decade.

Its almost universal adoption is also the most obvious reason why Facebook remains the must-have platform for marketers. While many brands have more than 10 million fans/followers on Facebook (and some significantly more), only few brands reach multi-million audiences on Twitter and Google+.