Leaving the BBC, she ran the trade association IPPA, which represented the interests of independent film and television producers and was once described by the Financial Times as “the most formidable lobbying organization in England.”
In 1994, she returned to the United States where she worked on public affair campaigns in Massachusetts and with software companies trying to break into multimedia. She developed interactive multimedia products with Peter Lynch, Tom Peters, Standard & Poors and The Learning Company. She then joined CMGI where she ran, bought and sold leading Internet businesses, serving as Chief Executive Officer for InfoMation Corporation, ZineZone Corporation and iCAST Corporation. She was named one of the Internet’s Top 100 by Silicon Alley Reporter in 1999, one of the Top 25 by Streaming Media magazine and one of the Top 100 Media Executives by The Hollywood Reporter. Her “Tear Down the Wall” campaign against AOL won the 2001 Silver SABRE award for public relations.
In 2004, Margaret published THE NAKED TRUTH: A Working Woman’s Manifesto about Business and What Really Matters (Jossey-Bass) and in 2007 she brought out HOW SHE DOES IT: How Female Entrepreneurs are Changing the Rules for Business Success. She is Visiting Professor of Entrepreneurship at Simmons College in Boston, she sits on the Council of the Royal Academy of Dramatic Art and she continues to work with businesses, write for magazines, in both the United States and United Kingdom. She is married with two children.