Not my art work, try
http://www.deviantart.com , there are a lot of ideas and good stuff there. The artist name and date are still on the bottom of the picture. I save a lot of pictures for ideas, or really anything that strikes my fancy, but I’m still respectful of an artist copyright.
Deviant art is a great resource and has a lot of tutorials for artist. Since, I have been trying to develop my doodling into real art as well as scratch building into sculpting, my perspective has changed. You look at things differently, paying attention to little details, proportions and the like.
I’m currently building a Traveller ship from the White Dwarf 70 as a little project. It’s a great set of plans and I just could not help myself.