Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Y] UK's Office for Library Networking. [See UKOLN.] UKOLN Unicode 2nd Universal Subscription Mechanism (USM) Unlimited items Unsubscribing Updates, time interval Upgrading readers Uploading feeds podcasts URLs copying feed://links format subscribing to feeds typing Usefulness, feeds USM UTF-8 2nd |