Beware: Publish America

Publish America has recently been receiving a lot of negative attention for being a "scam" publishing company, in the sense that they are considered by many to be a vanity publishing company, known for bad business practices, masquerading as a traditional publishing company. Read this Publisher's Weekly article for more info, or check out this dialogue on Absolute Write.

Do you have experience with Publish America or any other company that you believe readers/ writers should be warned about?

OR Can you recommend sites with more info for interested parties?