Barack Obama’s Twitter account was hacked on the 5th January…and other interesting Twitter facts.

Earlier today we posted a number of screenshots of Twitter’s admin panel. Interestingly, a number of notable fact nuggets were discovered. With help from a few friends we have compiled a list of some of the most interesting, if you discover any more, be sure to let us know via @zee or @thenextweb on twitter.

A few neat little facts from the screenshots:

Other interesting stats, not from the screenshots.

• 1,382% year-over-year growth in February 2009.
• Total unique visitors grew from 475,000 in February 2008 to seven million last month.
• Twitter is the fastest growing member community site for the month of February.
• Zimbio (240%) and Facebook (228%) were the second and third-fastest growing online communities.
• Twitter is not just for kids: In February 2009, adults ages 35-49 had the largest representation on Twitter – almost 3 million unique visitors from this age group (almost 42% of the entire audience).
• 62% of the audience access Twitter from work only, while only 35% access it only from home – watch out for those, “Twitter is killing our productivity at work” articles to start flowing out of the mass media any day now.
• It’s all about mobile: In January 2009, 735,000 unique visitors accessed Twitter via their mobile device.
• The average unique visitor went to Twitter 14 times during the month.
• They spent an average of 7 minutes on the site.
• In Q4 2008, 812,000 unique users sent or received Twitter text messages (via AT&Tor Verizon cell phones).
• The average tweet per person for the quarter was nearly 240.

Thanks to LouisGray, SimonWicks and Six Pixels of Separation for their help compiling these.