This excellent site contains a whole lot of info about freediving
and spearfishing. It also contains links to other sites and info
about a great email-list that caters to freedivers.
Spearfishing
Freedivelist - Official site This is the webpage
associated with Mark
Barville's freedivelist . This site is still under
construction but will be great when finished. I even have
my own corner there.
Lance Bailles' freediving site. Info about good spots
for freediving in Florida and other nice stuff.
Jimmy D. Silva's Spearfishing page This site contains
a lot of really useful information about hunting techniques,
guns etc . The author draws on experience from
portugese waters but what he writes seems relevant to a lot
of people.