I was thinking of a in game guild page, something so the members can post on, and guild masters can post info and announcements on with out having to compose a message for each and every knight in the guild, if your managing a large guild this can be very difficult and time consuming, also a guild page would help with the orginization of the guild and will help the guild host guild events,(massive dungeon hunts, ect)
I guess this would be pretty useful.
Or at least some kind of a "guild announcements".
Or even better, there could be a "notice board" in the guild hall where either officers or all members would be able to post messages, info, announcements etc etc.
(What purpose do guild halls have atm anyway?)