Sure! Zsuzsa has written quite a bit about her online ethnographic methods that she used during the decade that she did research on Surrogate Mothers Online. You can learn more about how she did her research in her 2018 article in Sage Research Methods entitled "Ethnographic Fieldwork Online: Studying a Surrogacy Support Forum" and in the introduction to her monograph, The Online World of Surrogacy.
Elly has done multi-sited ethnographic research on Israeli surrogacy, including narrative interviews with surrogates and intended mothers. You can read about her methods in the introduction to her monograph, Birthing a Mother: the Surrogate Body and the Pregnant Self. The research methods of her follow-up study of married Israeli surrogates can be found in her article "The Power of the Single Story: Surrogacy and Social Media in Israel."