Spammers are tricky. Spammers pay for the development of “crawlers” that will go through your site (and everyone else’s site) looking for email addresses. Once they find your email address on a page, you’re on their list forever.

Check this site out to protect your email address.

Note: This technique is not by any means a foolproof solution. But this technique will still certainly go a long way towards minimizing your exposure to less capable automated email harvesters.