Building a Rooftop Vegetable Garden - Guide to building a simple container garden without soil.

Castleberry Hill Chronicle: Our Secret Gardens - Article on the rooftop gardening activities in an Atlanta neighborhood. Includes photographs.

Do It Yourself: Watering and Irrigation - How to customize a drip irrigation system for a rooftop garden.

Flower & Garden Magazine: Up On The Rooftop - Article by Keith Corlett with an emphasis on highscaping in New York City.

Food Share: Rooftop Gardening - "Includes introduction, garden types, considerations, soil, water, plants, containers, and links."

Greenroofs.com: Greenroofs 101 - "Includes FAQ, plant lists for Europe and the US, advantages and issues, and a bibliography."

Old MacDonald Had a Penthouse - Article on rooftop vegetable gardens in New York City. Includes a slide show.

Peggy Notebaert Nature Museum: Making Your Roof Green - "Includes design considerations, construction with photographs of the museum garden's development, plants, tips, and links."

Sfgate.com: Rooftop Pleasures - Guide to publicly accessible gardens in San Francisco.

Sunset: Heavens Above - Profiles of gardens in San Francisco and Seattle with a focus on containers.

The Rooftop Garden Project - "Promotes rooftop gardening in Montreal and around the world, through information and a demonstration garden. Publications, events, techniques, and resource listings."