Timely reality check
Microsoft's new limit, from 2 GB currently, will leapfrog Google Inc.'s nearly 3 GB. Yahoo Inc. and Time Warner Inc.'s AOL e-mail services already include unlimited free storage.
Yahoo has the most active users in the United States among Web-based e-mail services, according to Nielsen/NetRatings. Hotmail ranks second, followed by AOL at third and Google's Gmail at fourth.