Searching
Is it possible to conduct searches (such as searching pdf content) if you're working in the online version rather than the standalone? If you can only search in a standalone, then can every member of a group search in their respective standalone version (if they are searching within the same larger library) or is the owner the only one who can search the standalone?
http://www.zotero.org/support/forum_guidelines#don_t_create_redundant_threads
http://forums.zotero.org/discussion/27751/search-facilities/#Item_1
you can search in the online version, only within Zotero fields, not in PDF content.
Group members can search in standalone, though will currently have to re-index PDF files (files aren't indexed when synced).