Links
Newcastle SciFest '10
I gave a short talk about the Physics of Hula Hooping at the Newcastle ScienceFest on the 12th March.
Edinburgh Hooping
This is the website maintained by my wonderful hooping teacher, Fiona, and has lots of useful hooping information, and far more helpful hoop links than I can be bothered to give.
hooping.org
For all things hooping hooping.org is a very good place to start, with lots of hooping news and videos. This is where I learnt how to make my first hoop.
Make your own hoop
If you want to make your own hoop, then I've posted an instructable here. I have actually further improved my hoop-making method since I wrote this.