Besides The Major, there are a few short stories you can read at the right column on Hector Lima's website. I think Steve Brain is the only one worth reading.
Here's a parody of Den by Junim called Ankh video.
Promises of love to strangers while waiting for the end of the world s a very interesting alternative experimental comic by Pedro Franz. It's divided in three parts, with four chapters each. I highly recommend reading this, but chapters are too short, maybe you should wait for a whole part to be available in English (so far, there are only 2 chapters) to get the real feel. Or maybe wait for the whole series to be done. I know I'll have to read it again when it's over.
If you're feeling romantic, try these short stories by Mario Cau.
A sci-fi shortie drawn by Edu Francisco
Here's a very balanced report on the police action in the favelas of Rio, made for a Dutch political cartoon website by Augusto Paim and MauMau can be read here.
Not bad comic strips by Adão Iturrusgarai in English and Spanish.
And here's some stuff I wouldn't even dare to read: Supersonic HQ and Foreskin Man.
Some short stories by Amilcar Pinna and Amanda Grazini. They're so beatiful... I wish there were more than just three...