The All-In-One Almost-Alphabetical No-Bullshit Guide to Detecting Everything

[Great guide from Mark Pilgrim][link], who’s [Dive Into HTML5][dive] is essential.

[link]: http://diveintohtml5.org/everything.html “The All-In-One Almost-Alphabetical No-Bullshit Guide to Detecting Everything – Dive Into HTML5”
[dive]: http://diveintohtml5.org/ “Dive Into HTML 5”