Article on picking good fonts
A great primer. Enough to get you on your feet for picking type styles, primarily for display on a screen, but just as useful for printed pages. Give your next powerpoint a little class.
(If you do use special fonts in a powerpoint, make sure and install them on the computer you present on, or it might switch you back to Arial. shudder)
PS: A List Apart’s iPhone stylesheet makes a lovely reading experience. Web page authors, take note.