Custom 404 Page

Was just browsing a few old articles and found a link to a TF thread - http://talkfreelance.com/thread14348.html

Maybe the thread no longer exists or the link structure has changed; either way it would be sensible to get a custom 404 page up to at least return the visitor to the TF homepage. Other options might be to have a page showing the top 10 current threads or maybe keyword related threads if the dead link has any keywords in it. The 404 can be a surprisingly significant part of incoming traffic.