From my own investigation of www.bible.ca, it would appear that they arean off-whoot or part of the Church of Christ. Among over things they teach that a believer is not saved until he is baptized in their church, and according to their formula.
If you wish to read a very good book, by a good Christian scholar, I would recomend Why You Should Believe in the Trinity by Robert Bowman. This is the best book refuting every arguement in the Trinity brochure. I'm not sure where this book can be purchased directly, though I'm sure borders or barnes and noble should be able to get this for you online.
As an aside, I used this book in a side-by-side comparrison of the Trinity brochure, and it was key in my realization the the WTS was either guilty of sloppy scholarship or gross misrepresentation of the Trinitarian viewpoint.
If you want an exhaustive study on The Trinity, then I would recommend Dr. Robert Morey's book The Trinity: Evidences and Issues That book can be purchased from Dr. Morey's website www.faithdefenders.com.