I love the Pulp store at Radio Archive :]
Singularity&Co. is digitizing old SciFi pulps if you're interested in the genre.
If you like bleak and pessimistic noirs give David Goodis a try. Ed Gorman said of his writing “David Goodis didn’t write novels, he wrote suicide notes.”
There's an epub sampler
here at MR with '
The Cop on the Corner' as the best in the bunch. The others are weaker, imho.
Munseys also has three of my favorite titles - '
Nightfall', '
Cassidy's Girl' and '
Night Squad'.