Don't boil it, you just simmer it to remove tissue and you do not bleach it, bleach and skulls don't mix! There is a great post at the top of the page with some good information for skulls. I would also search taxidermy.net, there are days worth of reading on the subject. I recently did my first European mount for deer, at the same time I did my first coyote. Both turned out very well. I used the peroxide/basic white mix to whiten my skulls and it worked great. There are a lot of ways to skin a cat, theres even more ways to fix skulls.
Here is a picture of my firsts:
