Answering Climate Sceptics: various JRI webpages are useful for this, but in addition links to material specifically written for that purpose will be collected here.
The Royal Society has produced a special booklet on climate controversies.
Sir John Houghton wrote a critique of the notorious Channel 4 programme The Great Global Warming Swindle.
Dr Martin Hodson wrote a short update on sceptics in April 2010 entitled
Sceptical about Climate Sceptics.
Dr John Lockwood wrote an excellent briefing specifically about The Skeptics Handbook.
There is a very good list of resources at The Real Climate Blog.
Please let us know of any other sceptic/contrarian-targeted resources.