Match your suit and shoes cheat sheet. Not sure I agree, seeing as I would allow a dark brown shoe with a charcoal suit and a lighter brown show with a navy suit, but it's a very good guide.
Ultimate Guide To The Bow Tie Bow Tie Infographic Via Antonio Covelo Covelo Centeno
How Pants Should Fit – The Principles of Fit (an article about wearing men's trousers).
15247 Different Tie Knots for Men to Be More Handsome