An electronic-book version of Conservancy: The Land Trust Movement in America by Richard Brewer has recently been made available by the University Press of New England.

It is available at various e-book retailers accessible on the web including Amazon.com  (Kindle) and Barnes & Noble  (Nook).

The paperback version of Conservancy is still in print and available at most web-based book stores and some brick-and-mortar ones.