Depending on how big your work is (smaller than a normal paper sheet) I'd say try to get a scanner. The quality is much more decent. A digital camerea like you already use works as well though.
All you need, once you have the picture on your computer, is a service to make it available to the internet. One that has been around for quite some years now, but sadly goes slower every day, is
imageshack.us. That of course is only one of many services. If you have your own webspace it'll be even better.
If you need help on how to post stuff here, I recommend you to read our faq, the
PEELers' FAQ. In there all the codes you need are explained, as well as general guide lines on how to get around here.
After all:
Enjoy your stay.