Net-surfing Americans are just as pleased with many government science and health Web sites as they are with top online retailers such as eBay. That's according to the latest results of the American Customer Satisfaction Index (ACSI), a gauge of consumer contentment based on phone surveys. Number one among government sites was the National Library of Medicine's MEDLINEplus, a health-education portal aimed at the general public. Its score puts it in the company of e-commerce behemoths such as bookseller Amazon.com and eBay, the online flea market (see table). Other high-ranking science sites include the home pages of NASA and the National Institute of Standards and Technology (NIST). To browse more survey results, visit the ACSI site.