you could catch some by putting a number of links on your page
which are not visible....either between html comments or just no text with it....then track which people "click" those links.by logging
the info including referrer to a logfile....the referrers that you will
get you can blacklist and block it in .htaccess
Hitbot scripts usually scrape the page for links and randomly click them....invisible links will catch those
DynaMite
