Book and evidence
His best known book is Evidence That Demands a Verdict, which is an attempt at defending the historicity and deity of Jesus and the inerrancy of scripture, has been a perennial best-seller on the Christian bookstore market since its 1972 publication. The the verdict of those who aren't already inclined to accept Biblically inerrant Christianity is "what's the point?"
 The internet
“”Atheists and skeptics now have equal access to our children as we have, which is why the number of Christian youth who believe in the fundamentals of Christianity is decreasing and sexual immorality is growing, apologist Josh McDowell said.
McDowell believes ready access to Internet porn is corrupting young people. Further he knows easy access to the Internet means atheists and skeptics can reach teenagers as easily as Christians can. McDowell fears if Christian fundamentalists have not reached children by the age of 12 those children will be lost to the other side. 
 See also