Reddit mentions of An Anthology of Graphic Fiction, Cartoons, and True Stories (Anthology of Graphic Fiction, Cartoons, & True Stories, Volume 1)

Originally appeared in An Anthology of Graphic Fiction

Nobody has put together such a nice resource like the one you link, but you can just start diving into the books that are out there. Anthologies are good. Here’s a great one that I bought for full price when it came out and now it’s available used for DIRT CHEAP: https://smile.amazon.com/dp/1932416080

This one too is amazing and dirt cheap: https://smile.amazon.com/gp/offer-listing/0300111703/ref=tmm_hrd_used_olp_sr?ie=UTF8&condition=used&qid=&sr=

Try Nobrow 10: https://copaceticcomics.com/comics/nobrow-10

And the NOW series by Fantagraphics.

You should definitely read The Comics Journal, http://tcj.com – and if possible, any of the physical TCJ back issues.

The biggest publishers of art comics are Fantagraphics and Drawn and Quarterly. There is also Nobrow, Koyama, 2D Cloud, and many others. Look at their various web sites

See if you have an altcomix based book store in your town, which is more likely if you in one of North America’s bookish northern cities. Seattle has the Fantagraphics store, Pittsburgh has the mighty Copacetic Comics, Brooklyn has (edit: Desert Island), Chicago has Quimby’s, Montreal has Drawn and Quarterly...

some of the big influences to these guys are Chester Brown's Yummy Fur, Art Spiegleman's Raw magazine, Love and Rockets.
I think Chris Ware was first published in Raw magazine. It's also the place that Spiegleman's Pulitzer Prize Special Awarded Maus (http://en.wikipedia.org/wiki/Maus) was first published. Love and Rockets was very influential to Adrien Tomine. Chester Brown was a very well respected comic creator in the 80's.
An anthology of graphic fiction (http://www.amazon.com/Anthology-Graphic-Fiction-Cartoons-Stories/dp/0300111703) is a great place to see many great alternative creators.