MyFonts website was the fist site for me to understand what Gareth Kay meant with an idea that does.
MyFonts let me figure out what font I was looking for by uploading a sample of the type I was looking for. The site let me try out fonts when experimenting with logotypes for clients. And it allowed me to demonstrate to the client a website with a font I want to sell lhim on. All free of charge. They would not even request your mail address in return for their services. As a subscriber I receive ideas of alternatives to using Helvetica or Times.
Identify fonts instantly on the go
Today MyFonts made their mobile app available. You can now identify fonts while out there instantly and purchase it while at it.
Gareth Kay MyFonts typography WTF mobile app