Twitter has been around for 7 years now. It’s weird to say “I remember when” when it comes to something like Twitter. As different as it is today from it’s original concept, Twitter has changed the way many of us communicate and share information.

In honor of Twitter’s 7th Birthday here are 10 Things Business Should Know About Twitter (2013) Edition:

1.  Twitter sees 400 million tweets per day (2012 saw 340 million)  Source

2.  55% of Twitter users are female   Source

3.  36 minutes is the average amount of time spent on Twitter   Source

4.  Twitter has 500 million registered users. 140 million are in the US.  Source

5.  28% of African American use Twitter. 13% use Twitter daily (technically 2 stats but…)  Source

6.  16% of Internet users say they use Twitter  Source

7.  Mobile users are 78% more likely to Retweet a brand  Source

8.  1 in 3 Twitter users tweet about TV  Source

9.  3 out of 10 people watch a TV show after discovering it on Twitter  Source

10.  39% of users exposed to a retailers tweet made a purchase  Source

I joined Twitter in December of 2008 as @3sixteenweb (now @bjstrawter). My life has never been the same. Here is my first tweet:

Do you remember what your first tweet was?