Web-based e-mail shares: Hotmail - 35.5%, Yahoo! Mail - 35.1%

ComScore Networks is quoted in a Reuters article with the data on Web-based e-mail usage. With 221 mln users (35.

ComScore Networks is quoted in a Reuters article with the data on Web-based e-mail usage. With 221 mln users (35.5%) MSN Hotmail leads the market, followed by Yahoo! Mail with 219 mln users and 35.1% of the market.