UPS celebrates centennial with social media The package delivery company turns 100 star employees into reporters, bloggers and video correspondents at the company’s centennial celebration. By Steve CrescenzoDec. 19, 2007 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.