THE COUNCIL OF NICEA
The first article you must read: What Really Happened at Nicea?
Another helpful (but brief) article: Nicea Myths:Common Fables About The Council of Nicea and Constantine
Yes, it's a Wikipedia entry. No, it's not too bad: First Council of Nicea
One page with a ton of links, all on this topic from Issue 85 of Christian History
Article by Ryan Turner of CARM (see #5): Myths about the Lost Books of the New Testament
Video by Michael Heiser on Nicea:
Michael Heiser - Gnosticism (part 6) - "What Really Happened at Nicea?" from Guy Malone on Vimeo.
An examination of Constantine’s spiritual commitments and the documentary evidence left to history concerning the proceedings at the Council of Nicea.
Here are a few book resources which provide accurate info about the books of the Bible ...
THE CANON OF THE NEW TESTAMENT
The Canon of the New Testament: Its Origin, Development, and Significance by Bruce Metzger
Canon Revisited: Establishing the Origins and Authority of the New Testament Books by Michael KrugerA High View of Scripture? The Authority of the Bible and the Formation of the New Testament Canon (Evangelical Ressourcement: Ancient Sources for the Church's Future) by Craig D. Allert
The Canon of Scripture by F.F. Bruce
The Origin of the Bible by Phillip Comfort
Understanding Scripture: An Overview of the Bible's Origin, Reliability, and Meaning - see the chapters in Part 3, "The Canon of Scripture"