Zotero has a very active and helpful user community. If you're just getting started, check out the extensive documentation. If you need more specific help or have run into a bug, try taking a look at the forums.
Health Sciences Library, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, 651 Ilalo Street, MEB 101, Honolulu, HI 96813 - Phone: 808-692-0810, Fax: 808-692-1244