[LINK] Putting "no spam" warnings on websites

[Ash Nallawalla]

> From: Adam Todd

> Or maybe I can dynamically create the graphic address on the fly?

Yes, and you see a lot of it now - most recently I noticed it in phpBB as an
option.
 
> So next question, can the robots decode the graphic?  There 
> must be a reason that the search engines use noise and diagonal lines?

To beat OCR.  Another variation is to have the lower part of the text blurred.