My latest newbie challenge...! Has anyone implemented an extensive user tracking system with Zope? Is this built into Zope anywhere? I am looking for the right combo of products and how-to's to figure this out. Should I use ZODB or zSQL, or pgSQL, etc? What performance problems will Zope have? forcing external methods, etc? I figured to use a permanent cookie (because I cant force a login) to assign a GUID (global user id) and then track everything the user ever does (click-stream)and when. Then correlate form data(surveys/polls, etc) with the GUID. I think this is different from blogging??? because the tracking is specific to the GUID/cookie. and not an IP. I would love some advice to generate the GUID itself too, so it cant be hacked and would never generate the same number twice.. whew...Thanks soo much for any feedback, Trevor