Concord Road Church of Christ: Evangelism Handbook
- Surveys methodology, doctrine, apologetics, and Christian living (HTML, DOC, PDF).
- http://www.god-answers.org/Online_Tools/Evangelism_Handbook/evangelism_handbook.htm

Mercy Street Ministries: Street University
- By Richard C. Hobbs, training in street evangelism (PDF).
- http://www.mercystreet.com/university/

God 101: The Abundant Life
- A simple course showing God's key to the abundant life that Jesus promises every person. Several formats are available.
- http://www.god-101.org/

Power Evangelism
- Notes from John Wimber's landmark book.
- http://www.pastornet.net.au/renewal/journal10/b-wimber.html

Street Preacher's Manual
- Read Gerald Sutek's guide online free.
- http://www.chick.com/articles/tableofcontents.asp

Watchword Revivals
- Read online classic revivalist authors such as Finney, Nee, Tozer, Spurgeon, and Booth.
- http://www.watchword.org/

Arthur Blessitt
- Three evangelism books online free.
- http://www.blessitt.com/books/index.html