Past Vigils can be found on this page, with the raw data on sacrifices for the statistically interested.
If a vigil is currently running, the Current_Vigil page will have all the info on queues, running and completed sacrifices. For all resource organization, planning and stockpiling (for concerned admins and members), see Resource_Planning.
The last two pages are, due to their nature, on the private guild wiki. Members are added liberally, just drop a line.
To find out about nearby public compounds which offer buildings we can use during our vigil see [Public Facilities]?. Please add compounds you know about and list the buildings they have available for use, as well as their co-ords and general direction from the Vigil.
After the record-breaking vigil of ~July 1st, no further organised Vigil has been slated yet. A good time to start the vigil is on a friday evening, so the hot phase starts on Saturday and can last over the weekend.
If you are interested in stockpiling and being an admin for/organising a vigil, /chat Spoiled. Same goes for Wiki access.