This site has considerable information:
http://www.gi.alaska.edu/~prakash/coalfires/india.html
A bit more on coal fires: http://burycoal.com/blog/2010/02/10/coal-fires/
------------
Here is a world map that lets you click to regions (US, Canada, Africa, etc.):
http://en.wikipedia.org/wiki/Template:World_image_map#United_States
'''BuryCoal'''
One group blog that may be of interest to people is [http://burycoal.com/blog BuryCoal.com]. It is aiming to make the case for leaving coal underground, along with unconventional oil and gas. I would post a link myself but, as the editor of the site, I don't want to inappropriately promote it.
It is a group blog, and we are always looking for contributions.