Just received an email from the content supervisor at Narrative Magazine (online literary magazine). They are looking for submissions for unpublished single-panel cartoons, comics strips and serialized graphic novels. And they pay!
We welcome submissions of previously unpublished single-panel cartoons, comic strips, and serialized graphic novels, as well as alternative-format works that focus on the visual. We look for excellence in visual artistry as well as in storytelling and characterization. We are interested in traditional forms and innovation alike. Narrative accepts submissions in the visual arts year-round. As is the case for written works, our response time varies from four to twelve weeks, with the slowest times usually being August/September and December/January. There is currently no fee for submissions in the visual arts. We only accept online submissions.
You can get more information on their website.