C130_Helo_refuelHere are a few good products I have come across to help improve safety in helicopter operations.

International Helicopter Safety Team (IHST)
The IHST Goal is to reduce the helicopter accident rate by 80% by 2016. One way to do that is to incorporate a Safety Management System (SMS)

CarefliteSMS-Toolkit

IHST HeliExpo Briefing from HAI 2009

Check out the presentations from CASA on the IHST website.

Confined Area Landings (CAL) Safety Brief on ppt
UH-1N_Formation
NTSB HEMS Public Hearing 2009 Summary