While the plugins mentioned in Jonathan Clarke’s top ten list are not what I’d chose as my own, I still think the list has merit, and is worth mentioning.
He mentions some little known plugins as well as some heavy hitters. The list is as follows:
- Referrer Bouncer
- Comment Timeout
- Email Immunizer
- Did You Pass Math?
If you want links to these plugins as well as descriptions, please check out his post at Help Net Security.