Typefaces can be found almost anywhere. There are amateur typefaces you can download for free from Behance and ones created by the stars of typography like Hoefler and Frere-Jones. However, there aren't many resources that give you the accessibility and breadth of information that FontShop offers. Between the site's content tester, which allows you to see what your work is going to look like, and the related fonts tab that shows you other typefaces you might be interested in, FontShop has it all covered.