Best practice from Yahoo

http://developer.yahoo.com/performance/rules.html

Mozilla interactive, meta tagged html5 video

http://webmademovies.etherworks.ca/popcorndemo/

html5 lowdown

http://slides.html5rocks.com/#slide1
Notifications
http://slides.html5rocks.com/#slide12
Drag and Drop
http://slides.html5rocks.com/#slide13
Forms
http://slides.html5rocks.com/#slide21
Audio + Video
http://slides.html5rocks.com/#slide22
Canvas – drawing
http://slides.html5rocks.com/#slide23
SVG
http://slides.html5rocks.com/#slide26
CSS
http://slides.html5rocks.com/#slide29

PHP and JQuery Login/signup system

http://demos.9lessons.info/loginup.html

HTML 5 Dr – Web SQL

Introducing Web SQL Databases
The Web SQL database API isn’t actually part of the HTML5 specification, but it is part of the suite of specifications that allows us developers to build fully fledged web applications, so it’s about time we dig in and check it out.

HTML clocks using JavaScript and CSS rotation

http://joncom.be/code/css-clocks/

WebApps

Reference Library
Find out the measurements of safari for iphone/touch http://developer.apple.com/safari/

HTML 5 – video

Another video player + explanation
http://camendesign.com/code/video_for_everybody
A longer explanation in Mark Pilgrim’s Dive Into HTML5
http://diveintohtml5.org/video.html
And a an opinion piece on the codecs (ergo: Safari and Chrome support H.264 while Firefox only supports the open Ogg Theora)
http://shaver.off.net/diary/2010/01/23/html5-video-and-codecs/

Flash on a mobile OSX device? Unlikely…