NICE!!!

[Skillz]

Two methods I have found to be the best against bots.

1. Advanced visual confirmation. Something where the background/image that the code is printed on isn't a solid color. Multiple colors, with "shadows" of fonts in the background.

2. Textual Confirmation. This is similar to visual confirmation, but it's much more versitle. You can have a question/statement on the registration where the user will have to answer it correctly. Can be anything.

2+2, are you a human?, what is this site name?, say hello, say i love hoser, ect...

Very effective.