webform spam prevention

Can someone recommend a best practice for blocking spam on web forms (aside from captcha) ? I've been for the most part utilizing a honeypot method and then individually blocking IPs and am looking for a more efficient method that won't require daily maintenance. I've come across this module: http://spam-ip.com/phpnuke-spam-module.php Has anyone used this method or have any other better suggestions? Thanks in advance! Jen Rasmussen Web Development Manager | Cetacea Sound Corp. 763-225-8465 | www.cetaceasound.com P Before printing this message, make sure that it's necessary. The environment is in your hands