[squid-users] spyware/adware blocking

[Gaylord Van Brocklin]

hey guys.. i'd like to implement spyware/adware blocks via a publicly 
maintained blacklist on a squid box.  i don't want to use a 3rd party 
app like squidguard or dansguardian though...

is anyone using any of these publicly available lists with squid as an 
external regex file?
which ones seem to be the most comprehensive while only blocking 
spyware/adware (i don't want to get into content filtering of porn, 
viruses, spam, etc..).

-gvb