I am like you, I can't believe I found a site about joint cracking.

As far as cracking your elbows, I have found that I can do it by doing the following:

1. Hold you are at a 45 degree angle.
2. Put your opposite hand on the wrist of the arm that is bent.
3. Now, while pushing your arm to straighten it out, apply some resistance with the bent arm. Make it just enough so that bending your arm is kind of hard. Your elbow should cracking as it is bending.

I have found that resistance allows me to crack other joints I was not able to.

I love to crack my joints. I usually do all of them right as I go to bed. Of course their are some that I crack all day.

I have learned to crack both upper and middle joints of my fingers (including my pinky and thumbs), my wrist, elbows, shoulders. All of my toes (including the big ones), my ankles (sometimes), my knees and my hips occasionally. I can also crack my jaw, not just a faint poppind of the TMJ joint, by a loud crack.