As a speaker and a conference organiser, I heartily concur with just about every item in this list.
A really good introduction to front-end performance techniques. Most of this was already on my radar, but I still picked up a handy tip or two (particularly about DNS prefetching).
At this stage it should go without saying that you should be keeping up with this kind of thing: performance is really, really, really important.
Here’s a geek advent calendar I missed. There are some great CSS techniques here.
A handy set of guidelines from Brad Frost. It’s still a work in progress but it’s got some good tips for mobile design and development.
Some good ideas for formatting tabular data for small screens.
A nice round-up of responsive design techniques, with a particular focus on content first.
Some very handy Textmate tips from Emil ....especially the bit about doing calculations for vertical rhythm.
Two little tips courtesy of Dan.
A collection of tips, guidance, advice and practical suggestions in developing accessible websites
Jina has put together an excellent series of steps you can take to keep not just nice, but downright sexy.
Some good tips here. Mind you... I should really be writing instead of posting links to tips on how to concentrate on writing.
John has been working behind the scenes on this for quite a while and now it's ready for launch. Lots of yummy standards-based goodness in bite-sized chunks.
Well, it only makes sense that I'd post this to del.icio.us, doesn't it?