Straight off the press, Newsarama has a list of solicitations from publishers for the month of April. Here are the links to them.

Marvel

DC

IMAGE

IDW Publishing

BOOM! STUDIOS

Dark Horse Comics

DYNAMITE ENTERTAINMENT

VIZ MEDIA

TITAN

VALIANT ENTERTAINMENT

ARCHIE COMICS

:01 FIRST SECOND

AC COMICS

AHOY COMICS!

AFTERSHOCK COMICS

ALBATROSS FUNNYBOOKS

ALTERNA COMICS

AMIGO COMICS

ANTARCTIC PRESS

ASPEN COMICS

BLACK MASK STUDIOS

CALIBER

CAVE PICTURES PUBLISHING

DAWN & QUARTERLY

FANTAGRAPHICS

HEAVY-METAL

HERO TOMORROW

HUMANOIDS

JOE BOOKS

KEENSPOT

LION FORGE

MAD CAVE STUDIOS

SCOUT COMICS

VAULT COMICS

YEN PRESS