Healthline Networks Inc., an online provider of health information, said Thursday that it has reached an agreement with Yahoo Inc. to expand the search and news provider's health section.
Healthline is to help expand Yahoo Health's offerings, including a search function for health information. Yahoo Health's 11 million users will see the changes later this spring.
Yahoo also will join the Healthline Media Network, which will let companies buy display ad space on Yahoo Health.
Healthline, which is based in San Francisco, is backed by Aetna Inc., General Electric Co., Investor Growth Capital, Kaiser Permanente, Reed Elsevier Inc., U.S. News & World Report and VantagePoint Venture Partners.
Shares of Yahoo, based in Sunnyvale, Calif., fell 28 cents to $16.25 in afternoon trading.