eMarketer

eMarketer is a great stop for market research on Internet trends and demographics. This oft-quoted source sells market data reports through its Web site, but also gives a surprising amount of statistical information away in its weekly analysis and e-stat columns. The web site features a "stat of the day", for example—What percentage of companies used e-mail for marketing purposes in 2000? e-Topic channels include e-commerce, e-mail marketing, demographics, Asia, Europe, Latin America, and the wireless and broadband industries. Users can register to receive daily or weekly stats in channel areas. eMarketer is a useful source to keep you updated on what's going on in the Internet marketplace.