HTML5
HTML5 for Publishers(http://www.amazon.com/gp/product/B005XE2CAO/ref=kinw_myk_ro_title), Amazon Kindle
What is HTML5(http://www.amazon.com/What-Is-HTML5-ebook/dp/B005ISQ7JM/ref=sr_1_1?ie=UTF8&qid=1334558696&sr=8-1) at Amazon, or What is HTML5?(http://radar.oreilly.com/2011/07/what-is-html5.html) at O'Reilly.
A sensible look at HTML5 and publishing(http://radar.oreilly.com/2011/12/html5-for-publishers-canvas-geo-formats.html) at O'Reilly.
The Most Important Parts of HTML5(http://blog.n01se.net/?p=375)

Canvas(http://www.w3schools.com/html5/html5_canvas.asp)
geolocation(http://dev.w3.org/geo/api/spec-source.html)
native audio/video
local storage(http://dev.w3.org/html5/webstorage/)
CSS3(http://www.w3schools.com/css3/default.asp)