I have just discovered wordmark! It is an incredible resource for choosing a font to use in a new design. Gone are the days of going through each font installed on my computer (and there are many!) one by one to find the perfect style. Now I just simply type a word and it will display that word in all of the fonts loaded on my computer. Instantly I can compare font styles, thicknesses, etc. until I find the desired effect I am trying to create.
Give it a try, it can be pretty addictive!