A pretty thorough overview of the American newspaper comic strip basically from 1896 till the early 70s. It covered every strip I've ever heard of (and hundreds more!). The black and white reproduction is good. They have some full page color comics... but the reproduction is very muddy.
Comic strips seem to get pretty boring in the 70s with the Peanuts influence of minimalism.
It has all the obvious ones Little Nemo, Krazy Kat, Gasoline Alley, Peanuts, Prince Valiant, Flash Gordon, Pogo,
Some that I want to check out more of:
Bud Fisher - Mutt and Jeff (1919) looks like a great early humour strip with thin lines
Hal Foster - Tarzan (1936) and Burne Hogath (1949) fantastic realistic fantasy artwork
Elzie Segar - Thimble Theater (1926) Popeye (1929)heard lots about this one
Chester Gould - Dick Tracy (1931) heard lots about this one
Al Williamson - Secret Agent Corrigan (1972) photorealism
Alex Raymond - Rip Kirby (1950) photorealism
Milton Caniff - Steve Canyon (1963) Terry and the Pirates (1941) great impressionist photorealism
Pat Sullivan - Felix the Cat (1932) Looks fun
Gordo - Gus Arriola (1954) pretty crazy experimental style
Ernie Bushmiller - Nancy (1946) I've read the John Stanley stuff
Russell Paterson - Mamie (1954) very sexy drawings
Leonard Starr - On Stage (1957) crazy photorealism
Stan Drake - The Heart of Juliet Jones (1957) also crazy good phoorealism
H, T, Webster - Bridge(1931).very attractive line work like Gasoline Alley
Guido Crepax - Valentina (1968) Heavy metal style stuff
Hugo Pratt - Captain Cormorant