On a few of the stack exchange sites I have come across posts where the links within the postings are dead. How should these be handled? Is this something that you should flag for moderator attention? There are cases like dead links in comments (where it looks like this is the only option), answers and questions. I know I can edit in cases of questions/answers, but that's only if it's not truly dead.
Basically, I don't want to annoy you with moderator flags on dead links if all it is going to do is annoy you. What is your preferred approach to dealing with dead links?