www.thirdage.com-“Third age” (after youth and middle age) sure sounds better than “old age,” doesn’t it? A relentlessly upbeat health resource.

www.aarp.org-A comprehensive hot list of medical links from the American Association of Retired Persons.

www.ama-assn.org/insight-Current news from the American Medical Association, information about specific conditions and help finding a physician.

www.aoa.dhhs.gov/elderpage.html-A directory of organizations for the elderly, and pamphlets from the federal Administration on Aging.

seniors-site.com-All seniors, all the time: hot links and bulletin boards about things like sex after 50, grandkids and leg cramps, maintained by the author of “The Second Fifty Years.”