Advocates for Urban Agriculture (AUA) is a coalition of organizations and individuals interested in learning about, networking and advocating for urban agriculture in the Chicago area. Site features projects, activities, information, resources, and opportunities in urban agriculture.

The American Community Gardening Association (ACGA) is a bi-national nonprofit membership organization of professionals, volunteers and supporters of community greening in urban and rural communities whose mission is to build community by increasing and enhancing community gardening and greening across the United States and Canada.

The Center's goal is to create greater awareness of the diverse career opportunities related to agricultural, consumer and environmental sciences within urban communities and beyond, by drawing upon the specialized knowledge of its expert contributors through educational programming, career counseling, mentoring, and exposure to Illinois’ agricultural industries.

The RUAF Foundation is an international network of seven regional resource centres and one global resource centre on Urban Agriculture and Food Security that provides training, technical support and policy advice to local and national governments, producer organizations, NGO's and other local stakeholders.

This site, run by the US Department of Agriculture, provides soil issues, state legislation, urban agriculture toolkit, and other information about urban agriculture.

RUAF is a leading Centre of Expertise and Global Partnership on sustainable Urban Agriculture and Food Systems. This site provides information about the meaning and benefits of urban agriculture and related policies.

The toolkit lays out the common operational elements that most urban farmers must consider as they start up or grow their operations. It also contains a special section on resources for developing indoor growing operations, such as aquaponic facilities.

PBS' Newshour program investigates the trend in big cities like New York and Newark for urban farmers to set up operations on top of the roofs of buildings.