According to a report by Eduventures.com, the industry had revenues of $96 billion last year, an 11 percent increase over 1998. The Boston market-research firm found that the traditional industry sectors—for-profit schools, learning products, and educational services—had healthy revenue-growth rates in 1999, ranging from 8 percent to 12.3 percent. But a new industry category—electronic services—is attracting the highest percentage of private investment, despite accounting for only a small fraction of the industry's revenues, the report released this month says. E-services companies received some $981 million in private investment last year, while generating about $500 million in revenues.