Modest Money makes my top five because of its comprehensive, chillaxed approach. There's no in-your-facity here - just lots of suggestions and things to think about. Easy to use site (maybe because he's a web designer!
Money Mustache saved me from a life of debt and "stuff." Thank you, MMM, for helping me get my personal finances back on track. As a tribute I made this graphic of some of his best quotes. These are some powerful tips and not for the weak of will.