"Shamans Market is a labor of love and service operated by Bryan & Denise Bigelow. They began their spiritual journey in 1994 and over this time have worked with many teachers including: Alberto Villodo, Jose Luis Herrera, Don Theo Parades, Ruben Orellana, Luz Clara and John Perkins. For the past 10 years Bryan & Dense have been students of Don Oscar Miro Quesada and the Pachakuti Mesa."
All the ones I bolded have threads on them. Basically it seems the Bigelows are well intentioned, if naive, believers in these various operators. They do have a few good items in there such as Walela's music, but mostly it's the core shamanism stuff.