Guidance

Government Performance Results Act of 1993 (GPRA) - Materials related to federal regulation mandating strategic planning within the U.S. Government.
www.whitehouse.gov/omb/mgmt-gpra/

Preparation and Submission of Strategic Plans and Annual Performance Plans - Requirements and guidance for U.S. government agencies, but contains lots of resource (how-to) information on strategic planning process and best practice.
clinton4.nara.gov/media/pdf/s210_2.pdf

Strategic Planning FAQs - FAQs regarding strategic planning - geared primarily toward non-profit organizations but with enough detail and general information to provide useful information to any strategic planner.
www.allianceonline.org/FAQ/strategic_planning

Strategic Planning Guide - U.S. Department of Energy, Office of Strategic Planning, Budget and Program Evaluation's guide to strategic Planning
www.osti.gov/policy/library/sp-guide.html

Strategic Planning Template - Template for the state of Texas. Not so much a "template" but rather a nice set of graphics that depict the overall planning process.
www.lbb.state.tx.us/Strategic_Plans/Documents.htm