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Bill McCloskey is co-founder and President of Email Data Source, the leading supplier of competitive intelligence to the marketing community.

Mr. McCloskey is among the more influential thought leaders in the field of interactive marketing. He was named one of online advertising's 50 most influential people by Media Magazine in 2004 and one of the 100 people to know by B2B Magazine in 2003.
Since 2003, Mr. McCloskey has authored a weekly column called The Email Insider that is read by more than 40,000 marketers worldwide. He frequently speaks at major trade conferences around the world and is jurist for some of the top email campaign and creative awards at these and other events.

Prior to Email Data Source, Mr. McCloskey founded and ran Emerging Interest, the leading evaluator of online advertising technologies for advertising agencies and marketers as well as The Rich Media SIG, a non-profit organization dedicated to educating agencies and marketers on emerging marketing technologies.

As Director of Business Development at Comet Systems, Mr. McCloskey led the team that developed the business model and relationships around their contextual advertising products. He ran the online advertising division of InterVu and was technology evangelist for Silicon Graphics where he forged relationships between Cosmo Software, a division of SGI, and companies such as AOL.

More recently, Mr. McCloskey created The One Hundred Club, a private, invitation-only email discussion group consisting of the most influential and important C-Level interactive marketers, publishers, analysts and technology vendors. The Success of the One Hundred Club enabled him to create a similar group called the Inbox Insiders, which was specifically designed for email marketers. Both of these organizations maintain lengthy waiting lists for applicants.