Terraforming System - Mankind's first true genesis device described in full detail

Terraforming essay - An essay on terraforming

Terraforming: The Extension of Life on Other Planets - Non-technical explanation of terraforming, with pages dealing with its potential on specific planets of the solar system.

The Terraforming Information Pages - Detailed information on terraforming, including some formal papers.

Terraforming for human colonisation - A discussion of the limitations of terraforming, concluding that it is less practical than space-based colonization.