I've used quite a few image replacement techniques in web design in the past to create better typography for the web. But recently I've ran into a technique improved by Scott Kellum that proved to be effective as well as enhancing the performance of the site.

Google today published recommendations for building smartphone-optimized websites and it encourages web designers and developers to take responsive web design technique as main recommendation. Their recommendations on smartphone-optmized website strategies are: Sites that use responsive web design, i.e. sites that serve all devices on the same set of URLs, with each URL serving the same HTML to all devices and using just CSS to change how the page is rendered on the device. This is G...