It can happen to anybody: car accident, lightning bolt, falling down
the stairs, encountering a stray bullet from a gangsta or a hunter. If
you suddenly leave this world, would your online conlang descriptions
survive, and would you want them to?
There's been some interesting discussion of this in the conlang mailing
list, which you can read on the web here ->
http://listserv.brown.edu/archives/cgi-bin/wa?A1=ind0806d&L=conlang
and here ->
http://listserv.brown.edu/archives/cgi-bin/wa?A1=ind0806e&L=conlang
If you read the latter you will see that Henrik Theiling has offered to
provide up to 5 MB of automatic webpage mirroring for conlangers.