Mark Blumenthal is the senior polling editor of the Huffington Post and the founding editor of Pollster.com.

The Huffington Post acquired Pollster.com in July 2010, but HuffPost Pollster’s mission remains the same: To publish and aggregate poll results in uniquely interactive charts and to provide daily running commentary and analysis that explains, demystifies and critiques political polling.

From 2006 to 2010, Pollster.com attracted over 28 millions visits and over 90 million page views. Time named Pollster.com one of the 50 Best Websites for 2009, a list that also included Google, YouTube, Facebook and Twitter. Pollster.com was partly an outgrowth of Blumenthal's Mystery Pollster blog, which he started in September 2004.

In May of 2007, along with Pollster.com co-creator Charles Franklin, Blumenthal received the Warren J. Mitofsky Innovators Award for Pollster.com from the American Association for Public Opinion Research. In 2005, the National Council on Public Polls awarded Blumenthal and the MysteryPollster blog a special citation for its work explaining polls to the Internet reader.

From 2008 to 2010, Blumenthal served as polling analyst for The National Journal, were he wrote a weekly column for NationalJournal.com

Blumenthal worked in the political polling business for more than 20 years, conducting and analyzing political polls and focus groups for Democratic candidates and market research surveys for major corporations. His experience includes work with pollsters Harrison Hickman, Paul Maslin, Kirk Brown, Celinda Lake, Stan Greenberg and 15 years with his former partners David Petts and Anna Bennett in the firm formerly known as Bennett, Petts and Blumenthal (BPB). In January of 2007, he left BPB to devote full time to Pollster.com.

His academic background includes a Political Science degree from the University of Michigan and course work towards a Masters degree at the Joint Program in Survey Methodology (JPSM) at the University of Maryland. He has also served as a guest lecturer at the Communications School at American University and at training seminars sponsored by EMILY's List, the Democratic National Committee and the National Democratic Institute for International Affairs. He served as Communications Chair of the American Association for Public Opinion Research (AAPOR) from 2007 to 2008.

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