http://www.w3.org/TR/webarch/
, then the resources that are relevant for the Memento protocol are:
http://archive.is/timegate/http://www.w3.org/TR/webarch/
http://archive.is/20120527002537/http://www.w3.org/TR/webarch/
; etc.http://archive.is/timemap/http://www.w3.org/TR/webarch/
timegate
" link to point at their TimeGate at the archive.is.