Decor8's recent post "Turning patterns into product" has lots of tips in the comments about how to approach getting your artwork printed on everything from fabric to paper.
If you ever need a logo from a well-known company, try Logo Orange's Famous Brands Glossary. You can learn the history of tons of famous logos and in many cases, download a vector file. Are they the official logo files from the various companies, legal to use? I have no idea. Proceed at your own risk.
Lynda.com is an online training library of tutorials for design software. I haven't poked around much yet to test it—maybe it will benefit folks with Photoshop questions. Check it out.
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