On Sat, Oct 18, 2008 at 01:29:32AM +0300, nsk wrote:
A dead link is like a book which is out of print. It
is hard to find,
but it was published someday, so it is appropriate to cite it as long as
you include the access date (a short quotation would help too).
A book that is out of print but available in numerous libraries is
treated differently, of course, than a book of which there are no
remaining copies in existence.
Web links should be treated the same. Web content that has gone dead
but has been archived elsewhere is not problematic. Web content that
has been lost to history is no longer valid as a reference on its own.
- Carl