A collection of links exposing the bogus Heartland Institute:
The Heartland Institute
What if you held a conference, and no (real) scientists came?
Exposed: Fake List of 500 global warming skeptics scientist
Heartland Institute Spreads FUD & Lies About Global Warming
Heartland Institute deniers denied by 'U' profs
Four hundred skeptics? Try 19
Top Scientists Demand Names Removed From Climate List