Classy free fonts
There are about 1,000 very classy fonts available for free on Google Fonts. These are fonts you would actually want to use in your book or on your website. Some are commissioned by Google and designed by world-class typographers, such as the font Roboto used in Google maps. Many of these fonts come as families with different weights, italic, bold, extra glyphs, etc. This set of open fonts is also offered by Adobe and Monotype; what Google Fonts offer is a very nifty web interface for navigating through the collection, including good search and filter. I particularly like their font “pairing” function, which suggests good combinations of fonts (like text and captions pairings). All the fonts are license-free. — KK