social-networking

Social networking works. Here's part of an email I just received, as an example:

Brad -

I stumbled across you through an Amazon book review 
(Missions in the 21st Century), discovered you are now 
working with MAF-LT, and then, via your blog, saw that you
will be in AZ sometime in October. Depending on where 
you'll be in AZ and when, I'd enjoy the opportunity to
connect with you.

...