Need a good source or a good tutorial on how to do page load data jquery.

[Redlightpacket]

I have looked up on the web for some good tutorials, so I haven't really found any "SIMPLE ONES". I'm looking for a good simple tutorial on how to make your page continue and continually load data when you scroll down the page. Will need ajax to pull some data from the database. I looked at 9Lessions tutorial on page load data jquery, but it's pretty complex. I tried to make it work in an example and it didn't work. But, all I'm looking for is a very simple tutorial on how to make a page load data jquery. Thanks..............