This may be fairly reasonable to explain to someone with technical experience, but I imagine even among technical people you'll find serious resistance in sligh

This may be fairly reasonable to explain to someone with technical experience, but I imagine even among technical people you'll find serious resistance in slightly older generations. I'm pushing 40, and my life is focused around the net, but I still have a Facebook account partly only because my wife canceled hers (too much of a time sink...), and I check it maybe once a month, with a browser profile I use only for Facebook. Eh, it's not a disastrous problem -- this seems like it would be something you can change without any serious reworking of your central offering. You could also have a one-time, optional Facebook connection where the patient could authorize you to grab their contacts, and then have no further contact with FB.