I'll share some links of things I like.  It'll be different than non-profits, but still things I like.


Mashable: Great place for all kinds of news on the social web.
YouVersion: the best online Bible there is.  Great apps for iPhone and iPad, as well as any of those other devices that other people use.
Q Ideas: an amazing collection of thinkers, striving to reinvigorate the church.

Geo-Location Networks
FourSquare: Check In. Find Your Friends. Unlock Your City
Gowalla: Go Out. Go Discover. Go Share.
Loopt: Discover the World Around You.
BrightKite: People. Places. Friends.
Yelp: Real People. Real Reviews