Ken Lerer is an American entrepreneur and investor known for his role in the media and technology sectors. He co-founded the popular news and entertainment website HuffPost in 2005, which became a significant platform for online journalism. Lerer has also been involved in various startups and investment firms, contributing to the growth of digital media. In addition to his work with HuffPost, Lerer has served on the boards of several organizations and companies, including BuzzFeed and The Daily Beast. His experience spans across different areas, including venture capital and media strategy, making him a notable figure in the digital landscape.