[support] Contact form anti-spam protection

[Mark Shropshire]

I use the built in Drupal site wide contact form on a number of sites.  
It seems that spammers find the form and start to do their thing  
fairly quickly. Especially on our University web sites which have a  
lot of exposure.

I am looking for recommendations for anti-spam protection for the  
contact form. I have used the captcha module and the spam module in  
the past. Are those still the best approach or are there other options  
for best practice?

I have also signed up for an account on http://mollom.com/. Figured  
that may be another alternative, but haven't checked to see if the  
mollum module works for forms other than Drupal comments.

Thanks!
Mark