I was just wondering about copyright for photographs.

From what I can gather, you automatically gain copyright for images you take (unless you were taking it for your employer), but to see any royalties, you must be a member of CAL. (im guessing unless you sign a release form for $$)

Is anyone a member here? or isnt it worth the bother? What sort of rights do you have if you see your photos being used somewhere without your permission? and has anyone been in that situation before?