Anti-spam strategies
Putting email addresses on web pages is sure to result in spam being sent to the address, since many robots harvest them for spammers. Currently, most of the robots can be thwarted by these simple methods. But they will probably get smarter over time.
Use a image of an email address
JavaScript replacing Mailto
Davies Memorial UU Church uses a no-spam javascript. You need to put it both in the header and replace each mailto link. The drawback is that browsers with javascript disabled will not be able to use the links.
Text email addresses
You can create text for the email address with "at" replacing "@" and have spaces on either side of the word as is done in the Mailman list archives and subscribers' lists for UUA email lists (accessible only by list subscribers). For instance, dmuuc at dmuuc.org. One would have to view it and reform it into an email address. Most spammers wouldn't be bothered.