I've noticed when a diary disappears you can get the entire contents by simply adding in a forward slash (it's on the same key as a question mark) at the end of the url of the missing article. Take for instance the article under Diaries labelled "
Algorythm for determining average wind direction". When I click on the root discussion it reads as:
http://www.fieldlines.com/comments/2008/2/11/181844/130
To correct the url I simply need to add the forward slash and it becomes:
http://www.fieldlines.com/comments/2008/2/11/181844/130/
Suddenly the entire contents show again. I have a feeling the problem with disappearing links is more a simple "source" problem for the links generated on the web pages. If the source of each generated page would add the trailing forward slash into the linked url then the problem would perhaps go away.