Donat Willenz has some excellent work combining traditional pen and ink with digital colors afterwards. He's also a pretty good photographer, judging from the photos on his site.
Jason Levesque aka Stuntkid creates weird and wonderful images that beguile and inspire. The are also handy at showing off his great range in different painting styles.
Renee Nault does a fascinating job of mixing media together to create wildly imaginative imagery. Beautiful and dreamy, I'm sure her work will end up in a gallery somewhere, if it hasn't already.
Mary Kilvert adds flair to simple line illustrations with interesting textures and color palettes. She has some adorable decorative buttons for sale too that will jazz up any tote or hand bag!
Illustrophile is a blog showcasing illustrators new and old, from around the world. It is run by Charlene Chua, herself an illustrator based in Toronto.
Please send site suggestions etc to illustrophile[AT]gmail.com, or use the form on the Contact page.