Hacker News Reader

I recently discovered CanIUse.com for the HTML5/CSS3 stuff. In some ways they aren't as detailed as I'd like. I wanted to see what browsers support <input type=number>, which Chrom(e|ium) supports, but FF5 doesn't. However they lump all Form Elements into one category, and tell me that FF has partial support. It would be nicer if they told me how partial, partial was!

CanIUse builds on top of data from eg. QuirksMode and gathers it in an easily scannable and filterable table.

Caniuse mostly covers futures stuff, Quirksmode's table cover everything, provide detailed reports on partial compatibility and check extensively for specious behavior at boundaries.

http://help.dottoro.com/ is useful too though has no usable search feature (relying on Google is not enough).