The jokes I use on the CleanLaugh site are, for the most part, floating around on the net, source unknown.  For that reason, I can neither give nor deny permission to use them.  That decision is up to you.

However, in some cases I have known the owner of a joke and received their permission to use it.  In these instances you will see a copyright notice and maybe their e-mail address at the end of the joke.  Please contact the owner directly to get permission to use the joke (and please do mention you saw it on the CleanLaugh site).