Since 1996, Mediapost.com has been the leading advertising and media Internet portal providing free tools, news, and directories to help our more than 50,000 members better plan and buy both traditional and online advertising. Some of the resources available on the website are as follows: The Media-Knowledge Base Directory with over 60,000+ media and agency contacts, resource links, events, news and classifieds, a contact list manager, a personal calendar, communication tools, and more