The most effective way I've done is to create an image of your email address and post it as an image. No spam robot can read images, yet ... The only unfortunate backlash from this is usability for blind users - but there is a way around this by spelling your email out phenotically in your ALT tags, as in "type wil the at sign fba group as one word dot com" :-)
Hope this helps.
- wil
Hope this helps.
- wil