So say 50 elements. With a 50ms difference that's 2.5 seconds of total time. Most browsers will do 2-4 simultaneous connections, so let's say 4, that's still

So say 50 elements. With a 50ms difference that's 2.5 seconds of total time. Most browsers will do 2-4 simultaneous connections, so let's say 4, that's still over 1/2 second faster page load. Now put that end user in Europe or Africa, and you're looking at 200-500 ms latency per call, versus 10 ms. You can see how the math works. Assets loaded on some of your recently submitted URLs: 21 - http://www.mozilla.org/en-US/firefox/10.0/releasenotes/ http://www.mozilla.org/en-US/firefox/10.0/releasenotes/ 60 - http://www.adequatelygood.com/2010/2/JavaScript-Scoping-and-Hoisting http://www.adequatelygood.com/2010/2/JavaScript-Scoping-and-... 104 - http://www.hollywoodreporter.com/thr-esq/falling-skies-lawsuit-tnt-font-285103 http://www.hollywoodreporter.com/thr-esq/falling-skies-lawsu... 282 - https://plus.google.com/u/0/111314089359991626869/posts/HQJxDRiwAWq https://plus.google.com/u/0/111314089359991626869/posts/HQJx... 54 - http://www.computerworld.com/s/article/9223601/Anonymous_dupes_users_into_joining_Megaupload_attack http://www.computerworld.com/s/article/9223601/Anonymous_dup... 67 - http://abcnews.go.com/blogs/politics/2012/01/rand-paul-in-pat-down-standoff-with-tsa-in-nashville/ http://abcnews.go.com/blogs/politics/2012/01/rand-paul-in-pa... 70 - http://www.wptavern.com/bad-behavior-in-the-wordpress-community http://www.wptavern.com/bad-behavior-in-the-wordpress-commun... etc.... The impact of reducing latency for each of those calls, and offloading those requests from your server(s) is a big deal for big sites.