"Querying the Catalog in powerful ways involves knowing how to build this QueryObject." ...from the Interfaces Wiki. Sadly, the QueryObject page is blank. Any ideas where I can find documentation of building complex query objects from python and maybe DTML?(which might be stupid, if so, tell me ;-) Also, am I correct in guessing that Catalog/ZCatalog stores references to objects by their path? Evan Simpson made some references to this with regards to SiteAccess and with the SiteAccess functionality being (eventually) rolled into Zope, I was wondering whether (and if it'd be possible) to store the references in some way that things don't break if you catalog them through one domain and get them back as search results from another domain? cheers, Chris