Twitter is so popular that even celebrities have opened their accounts already. We have Britney Spears, Ashton Kutcher, Demi Moore, Nicole Richie, Miley Cyrus, Oprah Winfrey, Vanessa Hudgens and many more. I'm even following Britney Spears. How about you, who are you following ? Do you think its really them who are twittering or their assistants ? You might be interested to join in this conversation. Have fun!