Another great link to hundreds of picture's of Cats and Dogs - Below most pictures is a next button on the lower right hand side, click and it will take you to several hundred more laughs.

Cats - http://www.cybersalt.org/cleanlaugh/cats/index.htm

Dogs - http://www.cybersalt.org/cleanlaugh/dogs/index.htm

This might take you close to an hour to see them all...