I wrote an article on Associated Content while back about Halloween coloring pages. After looking for good Halloween themed coloring pages, and mazes, and dot-to-dots, I found that most of the high Google ranked pages were disappointing as far as quality pictures and puzzles were concerned.
So I dug deeper.
I put all the best websites I found for printable Halloween activities and coloring pages together so you can find great pages without spending so much time trolling through the rest of the garbage that's out there:
Great Printable Halloween Coloring Pages