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by astrochoupe & 7 othersGoogle Code Blog: How we improved performance on Google Code
by nhoizeyImprove website load time by 500% with 3 lines of code | Aciddrop.com
by camel & 2 others (via)2007
Ajaxian » CSS Sprite Generator Released
by nhoizeyWhat are CSS sprites?
by greut & 17 othersCSS sprites are a way to reduce the number of HTTP requests made for image resources referenced by your site. Images are combined into one larger image at defined X and Y coorindates. Having assigned this generated image to relevant page elements the background-position CSS property can then used to shift the visible area to the required component image.
another way to save precious HTTP hits from your page