Most people have a monthly bandwidth limit on their internet connection, but they rarely use it all. Grass is a network that allows individuals to sell their unused bandwidth to businesses and institutions. This can be done through a suite of applications that run in the background of your phone or computer, resulting in passive income from a resource you may not have even known you had. This can be done through a suite of applications that run in the background of your phone or computer, resulting in passive income from a resource you may not have even known you had. This can be done through a suite of applications that run in the background of your phone or computer, resulting in passive income from a resource you may not have even known you had.