Surrogacy crops up quite often on this board and I wondered if anyone else has been listening to the Male Order series on Radio 4.
The presenter is Aleks Krotoski who has done an investigation of the online fertility market. It's in 15 minute episodes. This is a link to yesterday's. Today's is not up on Sounds yet but the link gives an option to hear all the previous episodes. For anyone outside the UK, I think you should be able to access BBC radio programmes this way too.
www.bbc.co.uk/sounds/play/m00127tt
She's not opposed to surrogacy per se but she has uncovered some important ways in which men who are multiple donors operate and control Facebook groups etc.