http://thehorrorsofitall.blogspot.com/

This is a blog called the Horrors of It All. Most of the entries consist of short comic book horror stories that appeared in various horror anthology comics in the pre-Code days (WWII era, basically). No download required--just click on the thumbnails for each page. If you look at the blog entry navigation thing a little lower on the right-hand side, you'll notice there are many hundreds of these entries since 2007. A nice little resource for short, public-domain, comic book horror stories.

There is also a huge list of links to other sites, which the guy chooses to include on every page for whatever reason.

An even better site I recently discovered:

http://htmlcomics.com/

Contains many thousands of free comic books--no special program required at all. It has lots of old horror comics, as well as the expected superhero stuff. Not just obsure stuff neither--it contains complete runs of various Marvel and DC comics. There's not much that isn't there.

I've already spent many hours there, re-reading various comic books I haven't read since I was a kid. I especially love the old DC horror titles such as Tales of the Unexpected, House of Mystery, House of Secrets, Ghosts, The Witching Hour, etc. Then there's Black Magic, The Twilight Zone, Ripley's Believe It or Not's True Ghost Stories, Boris Karloff's Tales of Mystery, not to mention the many Charlton horror comics and much,much more. And that's just a sampling of the horror stuff.

I've also read many of the 70s issues of the Avengers, drawn by George Perez and John Byrne when they were in their prime, old issues of Defenders and X-Men and Spider-man. Most of Alan Moore and Neil Gaiman's stuff is there. There's so much at this site, it's ridiculous. Check it out now--I'm sure someone is going to have it shut down eventually.

Oh crap I tried to go on there but the link didnt work :'(