Making Cash On The Web is a serious attempt to compile useful information about making money on the internet. It is a combination of things that I have learned myself, as well as information culled from other sources. It is NOT about get rich quick schemes, or wierd marketing programs. I am not going to sell you anything.
You want your email address to be available to legitimate users. But you also want to protect your email address from lowlife email havesters who want to flood you with illegitimate offers and products.
The best way to do this is to have a “contact” form on your site, wehre users fillin their message. The form can then send a secure message to your email address.
Barring this, there are other, simpler, methods of disguising your email.
Sarven Capadisli has written a nice post on his blog about various methods to protect your email address from spammers.