AOL (formerly a company known as AOL Inc., originally known as America Online, and stylized as Aol.) is a web portal and online service provider based in New York. It is a brand marketed by Oath, a subsidiary of Verizon Communications. AOL was one of the early pioneers of the Internet in the mid-1990s, and the most recognized brand on the web in the United States. It originally provided a dial-up service to millions of Americans, as well as providing a web portal, e-mail, instant messaging and later a web browser following its purchase of Netscape. At the height of its popularity, it purchased the media conglomerate Time Warner in the largest merger in U.S. history. AOL rapidly declined thereafter, partly due to the decline of dial-up to broadband. AOL was eventually spun off from Time Warner in 2009, with Tim Armstrong appointed the new CEO. Under his leadership, the company invested in media brands and advertising technologies.
In January 2000, AOL and Time Warner announced plans to merge, forming AOL Time Warner, Inc (which shows the byline in 2001 to 2003 for the Time Warner companies, such as Warner Bros. Pictures and New Line Cinema). The terms of the deal called for AOL shareholders to own 55% of the new, combined company. The deal closed on January 11, 2001. The new company was led by executives from AOL, SBI, and Time Warner. Gerald Levin, who had served as CEO of Time Warner, was CEO of the new company. Steve Case served as Chairman, J. Michael Kelly (from AOL) was the Chief Financial Officer, Robert W. Pittman (from AOL) and Dick Parsons (from Time Warner) served as Co-Chief Operating Officers. In 2002, Jonathan Miller became CEO of AOL. The following year, AOL Time Warner dropped the "AOL" from its name.