If you are looking for a RSS feed for your site which will supply jokes, you can simply use the feeder available.
Random Jokes Feeder link: http://freesms.parijat.biz/jokefeed.php
You can use a RSS reader to feed this information to your site. A simple use is being done on Funtelya website
Missing You >> I sent my cares 2 the wind..& asked the wind 2 pass them 2 you...when u feel the cool wind blowing against ur face.. thts me saying:MISSING U Added On: 24/Dec/2008 by admin | Send
>> Life ends when u stop
dreaming
Love ends when u stop
Believing
Hope ends when u stop
Hearing and..
I MISS U much more when u stop
MSG'ing ME Added On: 24/Dec/2008 by admin | Send
>> Lovely msg 4 a Lovely person from a Lovely person 4 a Lovely reason at a Lovely time from a Lovely mind in a Lovely mood in a Lovely style 2say "I MISS U" Added On: 24/Dec/2008 by admin | Send