High Performance Web Sites :: @font-face and performance
A quick survey shows that seven of the Alexa U.S. top ten web sites have a SCRIPT tag above their stylesheets or STYLE blocks: AOL, Facebook, Google, Bing, MSN, MySpace, and Yahoo!. These web sites don’t currently use @font-face, but if they did, they would experience the IE blocked rendering problem. This raises the concern that other web sites that are early adopters of @font-face have a SCRIPT tag above @font-face and their IE users run the risk of experiencing blocked rendering.

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