Nice slideshow of a few good tricks about the underpinnings of speed and jQuery.

IE 8 (only) thinks that all table cells have a colspan attribute, whether they do or not. So if you are looking to style table cells uniquely that have that attribute, it's a bit tough.

Quickly share your localhost via a timed tunnel. Very smart pricing scheme, 5 minutes are free, only $1 for the day. $5 a month is unlimited.

David DeSandro has written a pretty cool jQuery plugin that adjusts your layout all sorts of crazy and cool ways. Check out the demos, words just don't work here.

Find the classes and IDs you no longer use. Neat tool.

Brilliant write-up on how we have to be careful in developing for the mobile web; or we'll do what we did in 2000 and screw ourselves for the long haul. I mean, it's 2010 and I'm STILL worrying about that piece-of-shit IE6.

Firediff is a Firebug extension that tracks changes to a pages DOM and CSS.