There are many web services with some flavor of a wow factor. Few services can both wow you and provide real, measurable value. The open source project Google Fonts falls into this elite category.
The ability to break away from web standard fonts is a freeing notion. The Google Fonts API allows web designers the freedom to leverage hundreds of quality typefaces via Google’s servers.
Did I mention this is an open source project? Always a plus.
Click-through my visual guide below: