The Hackers 2 Hackers Conference (H2HC) 8th edition call for papers has been announced. It is being held in Sao Paulo, Brazil from October 29th through the 30th, 2011.
You can download it from the following link: https://packetstormsecurity.com/files/download/103169/H2HC-CFP-2011.txt
Source: https://packetstormsecurity.com/files/103169/Hackers-2-Hackers-Conference-2011-Call-For-Papers.html