I have done something similair last year and I know some places you could look at : google which is the best places to look for what you are asking and the search function of diabolo.ca.
Ladies and gentlemen, behold: www.wikipedia.com
Theres a secret, mystic website that only an exclusive number of students and internet professionals know about. I Will for once reveal this website, at the cost of me being excluded from the secret club of internet Masters.The site holds a massive amount of intelligence, and power which will destroy this World as we know it if it falls into the wrong hands. Use this website with extreme caution.Ladies and gentlemen, behold: www.wikipedia.comPlease for the sake of my safety, do not tell anybody i sent you there. -Tipper
1.The creation of the diabolo
2.Famous Diaboloists
3.Kind of Diabolos (monobolo, clutch ball-bearing, fixed axle)
4.Styles of Diaboloing (1d, 2d, 3d...)
Use your common sence (if you have one...). Who do you know as legendary diaboloists? You're a diaboloist yourself, you should know this.
When I did some searching about diabolo history while back I was really disappointed. Information is really scattered and not even wikipedia article has it as good as I hoped.But here's another interesting page which I recommend you to read through:http://hua.umf.maine.edu/China/ModernBeijing/pages/286_ChineseYoyo.html