Via Professor Althouse, I see this list of 100 greatest pop culture dogs.
Continuing this blog's long-running good old dog theme, I'm glad that Farley made the list. And Bandit from Jonny Quest. And Fleegle from the Banana Splits.
Some favorites I would add to the list - Verdell from As Good as It Gets, Satchel Pooch, Joe, Fred from Smokey and the Bandit, Duke from the Beverly Hillbillies, Murray from Mad About You, and the lads from Magnum, P.I (and if wolves count, "Two Socks" from Dances with Wolves).
UPDATE - Also, I would add Grimmy and Earl.