Oprah Winfrey

Twitter handle: @Oprah

Date joined: April 16, 2009

Followers gained in 24 hours: 130,000

The Queen of Daytime media felt like she finally joined the “21^st century” when jumping on the microblogging service. Though she remains vocally active on numerous world issues and pop culture trends, Oprah’s shown she needs some grooming on her Twitter etiquette after committing a tech sin: endorsing the Microsoft tablet as part of her “Favorite Things” list…on her iPad.