I like the idea of a memorial page as well, with some restrictions to prevent trolling (such as locking the post so no one can come back and say, "I never liked her/him, s/he made stupid posts."). I also recommend, if no one has done it already, having one Ehell friend with whom you have contact IRL, so if you do pass away, someone can post it rather than everyone wondering, "Whatever happened to Scritzy?"
Heck, I still miss OmniCindy, whose passing was the impetus for The Cindy Project.