I can say that all other sites that Dave Bruner (Elena's Models) mentiones are united in a «cooperation network» with Elena's Models, because they also have their own partner networks or want to develop their business using big partners.
For example, the owner of the site bridesandlovers.com is Stefan Hendrick (https://about.me/stefan.hendrick) - CEO and founder of RedSquareCupid.com. «RedSquareCupid was founded in 2009 and has built up a strong returning membership base. Initially starting with Bridesandlovers.com the company now operate four premium niche dating sites (ukrainiandating.co, asian2date.com, filipino2date.com). Our members come from North and South America, Europe, Asia Pacific and the middle East.»
However, at this point Bruner (Elena's Models) criticizes partnership in dating business. He asks in anger: «Why are there so many Russian/Ukrainian Scam Dating sites?? Why is the Romance Scam Industry worth billions to Russia and Ukraine??? Well, let me show you some insight into my methods.»