Stratton Press is one of these, and shares a number of the distinctive characteristics of these services: aggressive solicitation (often of authors who published with Author Solutions imprints), re-publication offers, bad English, and an emphasis on junk marketing (which is where these outfits really make their money). (accrispin.blogspot.ru)
I really like Junk Market Style... lots of neato ideas. (theinspiredroom.net)