broken links

many, many Amber resource links are broken through my various pages
and I’m not sure what to do about it
in most cases the information is just gone
(most painfully in the Amber Castle reference area)
my lesson from this?
if you see something cool on the web, save a pdf of it.
should I admit that most links are far out of date and throw out the pages?
start transferring good material to the blog?
your thoughts?