It's a UK radio station which is holding a poll to decide which are the best guitarists of the last 30 years. It's compiled a list of 40 which it deigned worthy of voting for. Personally, I think some of its choices are dubious, but at least Thurston Moore is on the list, who I'm definitely voting for.
Here's the link:
http://www.bbc.co.uk/6music/events/theaxefactor/