In response to queries from Chryscat and yours truly, Miss Snark the literary agent writes of e-publishing, "Let's start with whether I consider it a serious publishing credit. No. Let's finish with whether anyone in trade publishing considers it serious work. No. And it's not the format. It's the problem, to be blunt, of standards. Anyone can do it.... It's hobby publishing."
To a followup comment from yours truly, asking if she considered writing for those e-publishers whose books are available in major chains nationwide to be "hobby publishing," Miss Snark responded with confusion: "I took epublishing to mean web based content. You are, I now see, talking about actual books in stores. When you say it's e-publishers but you have an actual paperback book Im a touch confused."
My guess is that Miss Snark doesn't handle romance, or she probably would have heard of Ellora's Cave, or at least noticed their books filling the romance section at her local bookstore. Although there are agents who handle romance who simply aren't interested in e-publishers and small presses, and she may be one of them. I left some additional information in the hopes of enlightening her a bit.
And I found a new writer to add to my list of NY/epubbed authors: Diane Whiteside, who writes for Brava and formerly wrote for EC.