I've been "spearfishing" since the 70s, but only when I go to Algarve Portugal to visit family. Since I only hunted octopus until recently I only used a steel rod with a hook on the end. In the last few years I started to like eating fish, so I bought a speargun and started hunting fish, but they are much harder to catch, which led me to search for info online.
Out of the few forums I've checked out, this seems like a friendlier and more informative site.