Linked from
The 13 pages that link to Eminent domain, each with the reason it gives.
Land reformRelated: Governments may use compulsory acquisition to obtain land for redistribution.
Urban renewalRelated: It can assemble land for redevelopment when owners will not sell voluntarily.
PropertyRelated: It makes the conflict between private property and public projects explicit.
Real propertyRelated: It marks a major limit on an owner's control of land.
Land lawRelated: Compulsory acquisition marks a boundary on private land rights.