I think I'll give a little Sketch Marathon update, since I haven't actually posted my sketches. Truth is, I'm over a week behind. In addition to not catching up from my initial stumble, I'm having trouble finding full-body references for certain characters, thus impeding my progress.
If you're wondering why I don't Google pictures of characters, it's because there's so much junk that I have to wade through. I don't want to scan a sea of pixelated junk, bad fan art, porn, and stuff that has nothing to do with anything.
What are some good sites that specialize in official anime artwork? If you know of any, please list them. They can be general or series-specific.
I also noticed that some series have more official art circulating than others. I'm guessing this is because the series are more popular and/or have stood the test of time. I'd like to watch more of those types of series. So, to you, what are some series that are pretty much required viewing? List as many as you want.