This is a Long-jawed Orb Weaver living in a maple tree in my backyard. Its 8 eyes all seem to be staring back at me.
These spiders are named for their extra long jaws- see them sticking out of the head (or cephalothorax)? Click on the photo for a better look.
The spider spins a horizontal web where it sits and waits. When an unlucky insect gets caught by the sticky web, the spider pounces and prepares for a meal.