With so many people learning to draw by doing or going to Art School I am not sure why a web site could teach you as much as you want
Best thing to do is buy the book, how to draw it will help you alot, therefore they can trace and learn!
You can learn how to draw evil clown faces online at the DrawingHowToDraw website. Alternatively, you can also learn how to draw these faces at websites such as YouTube.
I like the site listed in the related links below. This shows how to draw a realistic cat step by step.
You can learn to draw skulls at art-is-fun,dragoart or pixel77 websites. You can also purchase art books that offer illustrations at Amazon or Ebay websites.
There are many websites that will teach you how to draw a cartoon-style bat. These websites include ones such as How To Draw, Drawing Coach, and Drago Art.
Go to tvdrawing.com You can learn how to draw skulls and animals there.
There are numerous websites offering hints and tips on how one can learn to draw a wolf. There are numerous video tutorials that can be found on YouTube. In addition, there are also websites such as WikiHow and Instructables one can find guides on.
dragoart.com drawinghowtodraw.com how-to-draw-and-paint-smart.com
Kalpha dot com. find-how-to-draw-websites.com
DragonArt and DragonTutorial are two great websites to check out to learn how to draw different kinds of dragons. There are templates, tips and pointers to help you along the way.
Animal Planet is always a good website to learn about
Dragnoart is good.