Recently I've been receiving an increasing number of invitations to submit papers to several new Open-Access journals published by [Scientific Research Publishing (SCIRP)](http://www.scirp.org/).

Has anybody here had any direct interactions with any of their journals? If so, what is your opinion?

I googled around a bit and they do not seem to be an exceedingly serious outfit. Although I have no intention of publishing there, I think this discussion may be useful for others receiving the same, or similar, invitations.