Australian Lowline Association
http://lowline.une.edu.au/- American Lowline Registry
www.usa-lowline.org - American Grassfed Association
www.americangrassfed.org - Double J Farms
www.doublejlowlines.com - Sharidon Farms
www.sharidonfarms.com - Toothacre Farms
http://toothacrefarms.com - Premium Gold Angus Beef
www.pgabeef.com/angus_beef_chart.htm