I have tried to ignore the controversy surrounding Linus Torvald and Linux but Andrew Tanenbaum's notes on Who Wrote Linux may have settled this issue once and for all. As an added bonus, I get to learn more about the History of Unix.
Tanenbaum's article is currently being slashdotted so you may not be able to get to it but it is also being mirrored by News Forge with Andy's permission.