Wordmark.it helps you choose fonts by previewing a word of your choice with the fonts installed on your computer.
Compare Google Font directory web fonts.
Web Fonts Preview
WebFontsPreview allows you to see how a website of your choice will look using Web fonts. No coding necessary. Simply choose your site, pick your fonts and enjoy the results
A browser-based app for creating beautiful, realistic and consistent designs based on typography.
CSS Font Stack
Collection of web safe CSS font stacks and font CSS.
The Web Font Combinator
This tool has been built to allow previewing of font combinations in a fast, browser-based manner. There have been numerous printed books through the years that allowed a designer to put a headline font next to a body font, and this is an attempt to recreate that for the web.
Subsetter is a free tool for optimizing and customizing Web FontFonts in three easy steps, in order to reduce bandwidth costs and make websites faster.
A typography tool, type in the word you want to see and instantly view it set in the typefaces on your computer.