Fonts In Use - Type in the real world: an amazing archive of typography.
Type Anything - Test & create the perfect typography setup for your website
Fontstand - Try fonts for free or rent them by the month for desktop use
FontJoy - Get smart font pairings in one click
Google Fonts - Making the web more beautiful, fast, and open through great typography
ChooseDaFont - Discover combinations of colors & fonts for your brand.