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
To Run A Long Episode. Added On: 22/Dec/2008 by admin | Send
>> When True Friends Meet In Adverse Hour
This Is Like A Sunbeam Through A Shower
A Watery Way An Instant Seen
The Darkly Closing Clouds Between ... (: Added On: 22/Dec/2008 by admin | Send
>> T R U T H ...
"Any body can sympathise with the sufferings of a friend,but it requires a very fine nature to sympathise with a friends success..." -,- Added On: 22/Dec/2008 by admin | Send