Try them all
Depends on if you want free, fake free, lifetime membership or what.
www.sexkey.com is a "free" Avs membership (you get $15-20)
www.freenetpass.com is a "Free" AVS membership (you get $15)
www.accessforlife.com is a "lifetime membership" (They pay $40 for one full month access to like 8 paysites and get their AVS membership for free. You get $25 for that sale, and $20 each month.
Those are my favs for "free" type of ones. I say try 2-3 random AVSes you like. And see what happens.
Other ones you could try:
www.sitepass.com
www.pornwebpass.com
www.universalpass.com
www.getverified.com (Pays daily by paypal, but last I looked the only join option was paypal)
There are tons more, if you want a full list of AVSes I use, icq me, or the few to stay away from: 17102068
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