Marc was born in Muenster, Germany. He graduated from the Free University Berlin with a degree in mass communications and philosophy. The US government deems Marc an "alien with extraordinary ability" (green card category E16). Marc has lived in the US since 1993 and in Miami since 1996.
Marc was a recipient of the Arthur F. Burns Fellowship, a US-German journalist exchange grant. He has co-authored the travel book "Dream Destination New York", published by German Bucher Verlag. Marc initiated the German-Israeli exchange program at International Journalist Programs, a foundation aimed at promoting the interests of young journalists.
Between 1990 and 1999 Marc worked for the publications "Berliner Zeitung" (1996 - 1999), "die tageszeitung" (1990 to 1995) and "The Atlanta Journal-Constitution" (1993) as part of a Arthur F. Burns Journalism Fellowship.
Marc is the founder of Quickbrowse.com, Inc., a company offering online services that enable Internet users to combine frequently viewed Web pages into a single page for faster viewing. Quickbrowse was the first Web service of its kind and is credited with inventing metabrowsing.
Since creating Quickbrowse in 1999, Marc has continued to launch a string of other outside-the-box Web services. Marc originally created Quickbrowse to facilitate the daily research he conducted as a Miami-based news correspondent for "Berliner Zeitung", Berlin's largest circulation daily.
Quickbrowse received wide media coverage during the height of the Dot-com bubble. It was quickly followed by other metabrowsers, all of which have ceased to operate as metabrowsers. Quickbrowse is the only one of the original Web-based metabrowsers still operating today. Quickbrowse backers included its lead investor, Geocities.com founder David Bohnett, the financial writer Andrew Tobias and CBS hurricane expert Bryan Norcross.
Mark has created additional Web-based services, such as Onlinehomebase.com (information management), Magicminder.com (contact management), Trackle.com (Web page content monitoring), and myHerald.com, an experimental online edition of the Miami Herald based on metabrowsing. He is also the creator of Aftersunrise.com, a video blog of South Beach sunrises.
Marc's sites have garnered press in more than 150 publications, including the New York Times, the Wall Street Journal and Newsweek. myHerald.com was lauded by Bill Gates.
Marc lives in Miami Beach, and on the Net. From 2002-2007, he served on the Miami Advisory Committee of the John S. and James L. Knight Foundation. He has been the lover of David Sine, with whom he is still a close friend.