The Picture Post Network involves individuals, schools, organizations and communities in a systematic monitoring project of their local environment, especially vegetation health. Digital photographs - taken from the same location and positioned in... (View More) the same direction and orientation - allow individuals, schools, organizations, communities and scientists to monitor a variety of environmental parameters, including plant health, growth, and phenology; erosion and deposition; water levels; and cloud and canopy cover. Participants study change over time in their local area, view NASA satellite imagery on the same days as the pictures, and contribute towards improving their own communities. The website provides instructions for participating, including planning and installing a picture post, monitoring projects, and taking and uploading pictures, and a repository of images. Picture Posts may be added by anyone interested in monitoring a particular location. Currently, Picture Posts sites are active at science centers, schoolyards and gardens, local parks, and nature reserves. (View Less)