Micromedex offers a Quick Tip every other month. The latest, #11, is about a free tutorial for people who use Carenotes to generate patient handouts.
Speaking of Micromedex… a recent analysis published in BMC Infectious Diseases found it performed well against competing products:
Polen HH, Zapantis A, Clauson KA, Jebrock J, Paris M. Ability of online drug databases to assist in clinical decision-making with infectious disease therapies. BMC Infect Dis 2008 Nov 6;8(1):153.