How well do the browsers resize images. Possible fix for IE >= 7
Historically browsers never resized images very well. Apart from chewing uneccessary bandwidth, you would always have to generate the resized image (perhaps a thumbnail) yourself - not let the browser do it!
IE <= 7 resize using 'nearest neighbour' and don't give a good result in resizing. IE8 fixes this with bicubic resizing
See also: http://www.tomwalsham.com/post.php?id=71
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