Wordmark.it allows you to preview the default system fonts already installed on your computer and help you choose fonts by displaying your text with your fonts.
The League of Moveable Type's website features a selection of high-quality open-source typefaces that you can download and use for both personal and commercial purposes.
VTF
VTF, or the Velvetyne Type Foundry, offers hundreds of open-source typefaces, which means you can use, modify, and redistribute all of their fonts freely (both for personal and commercial use).
Google Fonts
Google Fonts is an open-source font embedding service directory that you can use for any web page or project, commercial or non-commercial.
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