At five years old, Twitter currently boasts over 140 million tweets per day. And, 30 billion tweets after founder Jack Dorsey posted the first on March 21, 2006, Twitter is valued at nearly an estimated $10 billion dollars, with plans for an IPO in the near future. In a social media world ruled by Facebook, Twitter is an undisputed success.

To celebrate itself (as if it wouldn’t), Twitter site up a microsite, encouraging users to “Follow Your Interests. Discover Your World.” And, who better knows how to use Twitter than the likes of Richard Branson, Snoop Dogg and Hillary Clinton? Were you shocked to hear that Serena Williams has a thing for Green Day? If you followed her on Twitter, you’d be in the loop, and on the microsite you can start hearing her opinions as they form with the click of a mouse.

So, Twitter, here’s to five more years of online celebrity worship, faceless corporations branding themselves 140 characters at a time and journalism put firmly back into the hands of anyone with an Internet connection. The only thing we’re confused about: how many people take their laptop to a hip coffeehouse and tweet using Twitter.com over some other social media dashboard? No cell phone or HootSuite represented at all? Shameful, Twitter.