I will not be able to get a video or pictures of me juggling, because connections to slow to upload, so I put a link on the last step for you.
Step 1: Materials
When beginning you want to have the same type of ball because they have the same weight.
Step 2: One Ball
Step 3: Two Balls
Do this fifty times starting with your start hand. when you get that mastered do the same thing but starting with your weak hand.
Step 4: Three Balls
Now start with two balls in your start hand and one in your weak hand. The first thing to do is throw one of the balls in your start hand into the air, nose high. When it reaches the height of your nose Throw the ball in your weak hand nose high, when the second ball you threw reaches the height of your nose, throw the third ball, the second one in your start hand, nose high.
When you throw the third ball you should have already caught the first ball you threw.
I can't load a video because my connection is to slow to upload it, but this may helphttp://www.frontiernet.net/~steve_glimpse/juggle.html