Google released a font preview tool this week which enables websites to see how a fonts within its Font Directory will look at different heights, weights, spacing, colors, etc. It was one of our most popular posts of the week. Apparently, our readers are keen on fonts - so more font resources you shall have.
Today FontShop released FontFonter which lets you render a live copy of any Web page using its own proprietary Web fonts. If you're interested in what your website (or any website) might look like with some FontShop fonts, definitely check it out.
Font prices can be prohibitively expensive so being able to test and preview before spending a great big lump sum could be quite valuable.