here are more than 3.5bn pieces of content (web links, news stories, blog posts, etc.) shared each week on Facebook.
There are now 11m LinkedIn users across Europe.
Towards the end of 2009, the average number of tweets per day was over 27.3 million.
The average number of tweets per hour was around 1.3m.
More than 700,000 local businesses have active Pages on Facebook.
Purpose-built Facebook pages have created more than 5.3bn fans.
15% of bloggers spend 10 or more hours each week blogging, according to Technorati's new State of the Blogosphere.
At the current rate, Twitter will process almost 10bn tweets in a single year.
About 70% of Facebook users are outside the USA.
India is currently the fastest-growing country to use LinkedIn, with around 3m total users.
More than 250 Facebook applications have over a million combined users each month.
70% of bloggers are organically talking about brands on their blog.
38% of bloggers post brand or product reviews.
More than 80,000 websites have implemented Facebook Connect since December 2008 and more than 60m Facebook users engage with it across these external sites each month.
