Let's see how this goes. I have a few projects going, where I am looking for particular data sets.
You, having read this, may see a match between data I am looking for, and data you know is available for use.
Perhaps you'll reply here, to let everyone share in this knowledge.
Today's Shopping List
A point data set of lat/long coordinates for all major confluences (e.g. 0,0 and -180,0 etc etc)
Car accident locations
Bike accident locations
Pedestrian accident locations
Gasoline station locations
School locations with enrollments
Hospital locations with # of beds
Historical record of gas leak reports