Crunchy Frog said:PublishAmerica books do not count as professional publication credits, thus won't qualify the authors to join professional authors' organizations, such as Science Fiction and Fantasy Writers of America, Mystery Writers of America, etc.
Also, due partly to a recent string of negative publicity they received from publications such as Publishers Weekly, Washington Post, and Associate Press, PublishAmerica has an extremely poor reputation in the legitimate publishing industry. Writing, "my first book was published by PublishAmerica!" in your query letter is not likely to impress anyone. In fact, it might make you sound like a clueless amateur. At best, agents/editors will ignore it. At worst, they'll automatically reject you.
Just out of curiousity, why is it that you do not get professional credit from Pa?
Bare with me, I'm new.