Radio programs have interviewed me about several of my articles; here is a selection of interviews available online. NPR's "On the Media": Prime Number, May 26, 2006 Brooke Gladstone interviewed me about the proliferation of questionable numbers concerning online sexual predation of children. (Direct link to the audio; related Wall Street Journal Online column.) Interview About Numbers Guy With Will-580, September 27, 2005 Rita Schulte interviewed me about my Numbers Guy columns and Blurbs columns for Gelf Magazine. (Direct link to the audio.) NPR's "Marketplace": Bidding for Seach Engines, April 8, 2004 Trial lawyers looking for clients are bidding up the value of web-search based advertisements. I talk to host David Brown about why a word like "Mesothelioma" may be the most valuable word on the internet. (Direct link to the audio; related Wall Street Journal article.)