there's a cool magazine launching next month called Xtreme Video.
check it out at www.dv.com/xtremevideo.

Here's a brief description:

From skateboarding, surfing, and motorcross to mountain climbing and
deep-sea exploration, Xtreme Video Magazine celebrates capturing life
in the extreme. Xtreme Video Magazine is geared for professionals and
thrill seekers with an avid desire to shoot video and photos of their
adventures. Feature stories and photo essays take readers behind the
scenes to reveal the secrets of capturing the option on video and in
photographs.