Earthbag is a Yahoo group running since late February 2005 currently with 96 members. Paulina Wojciechowska is a UK and Polish based architect who specialises in earthbag construction. She is the Director of Earth Hands and Houses . Here natural homes have been the subject of many glossy magazines in both the UK and Poland. Paulina is the author of Building with Earth. Kaki Hunter and Doni Kiffmeyer run OK OK OK Productions based in Moab, Utah, USA. They are the authors of Earthbag Building. Their website lists suppliers of woven polypropylene feed bags suitable for building and contains lots of useful information about earthbag building.