- Baltimore City Department of Public Works [find recycling collection dates]
- Baltimore County Recycling and Waste Prevention Program [includes links to collection schedules]
- Living on Earth Radio Show [weekly environmental news and information radio program from Public Radio International]
- Earth 911
- Freecycle.org [web site that connects those donating, and those seeking, gently used items at no cost]
- World Environmental Organization
- Greenbiz.com [stay up-to-date on the green activities of businesses and organizations]
- B'More Green [an blog from the Baltimore Sun all about greener living]
