Monday morning marked the beginning of a new era for Caitlyn Jenner, previously known as Bruce Jenner. Not only did she introduce herself to the world with a stunning Vanity Fair cover [1], but she also made her debut on Twitter and Instagram. Caitlyn's first tweet was all about her new look — she shared her magazine cover, letting the image speak for itself. Her second tweet touched on the personal significance of the groundbreaking image. "I'm so happy after such a long struggle to be living my true self," she wrote. "Welcome to the world Caitlyn. Can't wait for you to get to know her/me." Next, Caitlyn launched her Instagram and Facebook accounts by sharing the cover with a similar message. "Everybody has challenges in dealing with life," she wrote. Read on to see Caitlyn's new handles and posts, then see even more gorgeous pictures of Caitlyn [2] and how people are applauding her [3].