Here are some useful resources to help you with evangelism.

Websites:

• Two Ways To Live
• Peace With God
• Tough Questions
• What Is Christianity?
• Apologetics

Helpful Links:

• http://thegospelcoalition.org/resources/topic-index/a/229730
• http://www.christianityexplored.org/
• http://timothykeller.com/books/the_reason_for_god/
• http://www.billygraham.org/
• http://marshill.com/about/the-gospel
  http://www.desiringgod.org/resource-library/articles/quest-for-joy
• http://theresurgence.com/2012/01/16/7-tips-for-talking-with-your-neighbors-about-jesus
  

Recommended Reading:

• King's Cross: The Story of the World in the Life of Jesus by Tim Keller
• The Reason for God: Belief in the Age of Skepticism by Tim Keller
• Basic Christianity by John Stott
• Mere Christianity by C. S. Lewis
• The Prodigal God by Tim Keller
• Case for Faith: A Journalist Investigates the Toughest Objections to Christianity by Lee Strobel
• Case for Christ: A Journalist's Personal Investigation of the Evidence for Jesus by Lee Strobel
• Evangelism & the Sovereignty of God by J. I. Packer and Mark Dever
• The Gospel and Personal Evangelism by Mark Dever
• More than a Carpenter by Josh McDowell
• Out of a Saltshaker by Becky Pippert
• Mere Apologetics: How to help Seekers and Skeptics find Faith by Alister McGrath