Bucks County Sprawl - an excellent discussion with photos on suburban sprawl, from Levittown to Bucks County's more recent developments.

Delaware River Keeper - a nonprofit, membership organization that has worked since 1988 to strengthen citizen protection of the Delaware River and its tributary watersheds.

Find a Land Trust - this site lists Pennsylvania land trusts, including The Tinicum Conservancy, describes the land trust process and discusses different programs.

The Heritage Conservancy - Bucks County organization that partners with other conservation groups, serves as consultants to community planning boards, provides expertise in land use planning, and offers authoritative evaluations of historic architecture".

Bedminster Conservancy - committed to the protection and preservation of the agricultural heritage and rural lifestyle that still characterizes Bedminster and neighboring communities in upper Bucks County.

PennEnvironment - independent research and advocacy group which has, among other issues, helped win local initiatives that preserved thousands of acres of open space in Bucks County.

Pennsylvania Land Use Coalition - a nonprofit organization, located in Bucks County, dedicated to providing environmental information and community advocacy. Excellent resource concerning sprawl and local issues.

Tinicum Conservancy - an Upper Bucks County land conservancy commited to the preservation of open space, natural resources and scenic features. Supports environmental and historical preservation programs.

Tinicum Township - official township website; lists all officials, committees, meetings dates, etc.