Amazon only allows free promotions 5 days out of every 90 days, and only if the author requests it — which I probably won’t do again!
So if you know someone who you think would benefit from the book, or if you don’t have it yet, let them know they can get it free if they act fast. Amazon link –> http://www.amazon.com/Joy-jQuery-Beginners-Popular-Javascript-ebook/dp/B00H1G7B08