It's funny that you bring this up: just a few months ago I found a NES emulator and a Legend of Zelda ROM so I started playing. After about level 3 (where it starts to get hard) I found one of those online walkthroughs. I'll tell you, it made the whole thing a lot easier to do. I even went on and beat world 2 (or whatever its called).
I'm such a nerd. Oh well.