PHP: Defending Against Spam Bots

Nice, there's only too little info about the image selection method. Like the HTML/JAVASCRIPT part for example.

tip-kit: Dunno if you'll ever see this, but do you mean what I called Method Two? If so, I'd gladly write more on it. Maybe even a full tutorial just on it, with a class for implementation.

Well i meant the one with selecting a correct picture. I know how to implement it in N ways, but i'm sure there's too little info for the beginners. I think it could be a superb tutorial just by explaining this single topic alone. Expand on that and you'll have yet another tutorial ;] Good luck.