Microsoft has just put online an H1N1 self-screener Response Center as part of HealthVault.  It is available online to all, and results can be saved in a HealthVault PHR (it will prompt to set up one if you are not a subscriber.)  What is remarkable is the speed to market:  the questionnaire, licensed from Emory University, was put together in a month. The algorithms underlying it can be ‘tweaked’ as new information becomes available.  David Harlow’s HealthBlawg