Since the day of Pentecost, there have been people who have followed the simple New Testament pattern of Christianity.
Much of what is refered to as "nondenominational" is actually "interdenominational." What's the difference? "Interdenominational" accepts all beliefs, "nondenominational" rejects all man-made doctrines and strives to follow only what the Bible teaches.
Jesus says it does. Notice what He has to say in passages such as Matthew 7:21-23 and Mark 7:6-9.
What doctrinal matters are important? Here are four of the important categories.
How do we arrive at decisions about religious questions? Where do we find the authority for what we do?
How is a person saved? The correct answer to this question should be important to everyone.
The church of the New Testament is organized in a certain way. How does a religious group compare with this example?
The New Testament prescribes a certain form for worship. How does a religious group compare with this pattern?
The Gospel of Christ (audio and video)
Apologetics Press
Christian Courier
theBible.net
House to House / Heart to Heart
World Bible School
World Video Bible School
In SEARCH of the Lord's Way
Fishers of Men
World English Institute
Gospel Gazette
Sunset International Bible Institute