Media Monday: Twitter celebrates fifth birthday

Twitter's fifth birthday is today. The microblogging website asks users to post "what's on your mind" in 140 characters or less. To celebrate the social media landmark, some fun Twitter facts:

• FIRST POST: "Inviting Coworkers"
• CREATOR: Jack Dorsey
• TWEETS PER DAY: 140 million
• ORIGINAL NAME: twttr
• EMPLOYEES: 400
• NEW USERS EACH DAY: 450,000
• USERS: 200 million
• DAILY SEARCHES: 800,000

 Sources: The Atlantic, Wikipedia