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Someone posted these links in a resources thread in one of the programming forums I contribute to.
It’s basically a presentation by Yahoo! JavaScript Architect Douglas Crockford – it’s a couple of years old, but it’s all still pretty much accurate.
It’s a must-see for anyone who doesn’t know much about JavaScript, or more importantly, anyone who thinks they know about it and has cast it aside as a “simple scripting language”. ;)
It’s about 2 hours long so it’s a bit of an investment, but it’s been broken up into 4 half-hour-ish videos for your viewing pleasure.
Enjoy:
Part 1, Part 2, Part 3 and Part 4

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I’ve been watching/listening to October 07’s FOWA presentations and the latest one I’ve heard – by Yahoo’s Steve Souders – struck me as worth a quick look. Who wouldn’t want to speed up their websites?
Steve describes 14 rules that make up a ‘best practices for speeding up your website’: http://developer.yahoo.com/performance/rules.html
And there’s also a way to use the Firefox add-in, Firebug in combination with YSlow to analyse your sites based on the 14 rules: http://www.getfirebug.com/ and http://developer.yahoo.com/yslow/
We’ve been planning a css/js cache for a while now, but never got it off the ground, still seems that a few of the other rules could provide a good return on little investment.