This is a pretty neat tool for docs. I’ve signed up (free), have it on my iPhone, and will see if it’s super-useful. Maybe not for an EM doc, but time will tell. It’s at Doximity.com
The biggest plus I see right off is the HIPAA compliant SMS texting, which would make some communications available we just cannot now.
At any rate, check it out and see if you like it. I find the web interface easier for adding colleagues, but maybe that’s just me.
One happy thing I got from this is a list of all my medschool classmates, and where they are now. A surprising number are in my area, and more than a few are in EM!