If you want to make jewelry - seriously want to make jewelry - and you listen to nothing else I ever say - listen to this. The most comprehensive and complete jewelry making reference and forum is Ganoksin - known to participants of the mailing list as the "orchid list."
The reference material, articles, videos - are a huge help to those who want to learn - or are just curious.
And the mailing list, although very high volume - has a huge amount of information on it. If you can take the time to read it - you will learn lots from people making a living being goldsmiths and jewelers.
I highly recommend it!
And if you agree with me - send them some money - they have a donate via paypal button. They have been serving up this information free of charge for years - their website says since '96 - and I think I've been reading it on and off since about '98. They deserve your support. ;-)