Typos Type & Image Design - Distributes fonts from various foundries. Also provides typographic and corporate identity services. Based in Zurich, Switzerland. [Windows, MacOS] - http://www.typos.ch/
School Fonts - Sales of fonts designed to aid learning handwriting, and kindergarten dingbats. Also offer exercise sheets. [Windows, MacOS, Linux] - http://www.schoolfonts.com/
Phil's Fonts - Distributor of Opentype, TrueType and Postscript fonts from many different foundries. Browse alphabetically, by classification and by foundry. [Windows, MacOS] - http://www.philsfonts.com/
MyFonts - Subsidiary of Bitstream, Inc offering sales of fonts from various foundries (including their own). Also offer font identification service and CD based font collections. [Windows, MacOS] - http://www.myfonts.com/
BuyFonts - Vendor of TrueType and PostScript fonts. Browse alphabetically or by style. [Windows] - http://www.buyfonts.com/
Adobe: Type Library - Offers a collection of fonts browseable alphabetically, by theme, by use or by designer. Also offer Font Folio software package containing 2,200 OpenType fonts. - http://store.adobe.com/type/
Fontz - Provides ad free access to about twelve hundred fonts, organized by letter, category, author and popularity. Features previewing of sample text for available fonts. [Windows] - http://ch.fontz.ch/
Famous Fonts - Font archive that collects fonts used in TV shows, movies, publications, and other media and products. Browse by theme. - http://www.smackbomb.com/famousfonts/
Kids Fonts - Sales of tracing and coloring fonts, and worksheet packs for preschool, or learning disabled children. [Windows, MacOS] - http://kidsfonts.mivox.com/
Fonts 4 Teachers - Offers manuscript, cursive, and D'Nealian-style fonts for learning handwriting; phonetic symbol font; and math and ASL-symbol fonts. [Windows/MacOS] - http://www.fonts4teachers.com/