This chapter provides an overview of the development and use of information technology to improve the management and welfare of grazing livestock under extensive systems. It discusses the evolution of grazing management through the animal/pasture interface, and the development and application of grazing management technologies, including, on-animal managements though virtual fencing technology and on-animal monitoring of pasture intake, location, health and activity. Technological examples will focus on the Australian beef industry as a potential early adopter of PLF solutions. A case-study is also presented on the commercial implementation of the eShepherd® virtual fencing system for protection of an environmentally sensitive area. The chapter concludes with a summary of developments to date, discussion of future research trends, and where to look for additional information.