If you asked to users of social networks or people interested in online marketing which the most popular networks are. We would probably listen that Facebook and Twitter are the most popular ones.
Google+ is the next big social netword, it already ranks as the second most important social network in users terms, enjoying the presence of 25% of Internet users. Its growth is driven by its integration with Google products like Gmail, YouTube and Android. South Korea, France and the United States are the three countries where Google+ has grown more in 2012.
Twitter remains as the third most important social network, as long as we do not consider YouTube as a social network. Twitter is currently used by 21% of the population with Internet access, multiplying this figure by 7 since July 2009. Twitter enjoys significant growth in 2012, in fact, the social network is the fastest growing social network, especially in the U.S. where its usage had stagnated. On the downside of Twitter, we found that half of its users do not post tweets and only read tweets. Besides that, there are still countries like Germany where the penetration rate is very low, with only 6% of Internet users.