The Lost Type Co-Op is a Pay-What-You-Want Type foundry, the first of its kind.
Founded by Riley Cran and Tyler Galpin, originally in a whirlwind 24 hour adventure to distribute a single typeface, Lost Type has blossomed into a full fledged foundry, distributing fonts from designers all over the world, with its unique model.
Users have the opportunity to pay whatever they like for a font, you can even type in '$0' for a free download.
100% of funds from these sales go directly to the designers of the fonts, respectively.
Lost Type takes no cut of sales, and holds no funds.
These are some really fun and interesting fonts for free (or pay if you're feeling generous). While they aren't as plentiful such as on sites like dafont, they are much more professionally designed.
They have their own blog too to show off how their fonts are being put to good use. So you can check that out and follow it to get even more inspiration.