LukeW's notes on Jason Grigsby's talk on mobile-first responsive design and how best you can approach it.
Brad Frost walks you through what it takes to truly go Mobile First in a responsive design.
LukeW's notes on Mat Marquis' talk on making responsive Web sites more efficient. There's some good insights on progressive enhancement in responsive design.
Dan Rowinski at ReadWrite brings us some basic tips about responsive design that every developer should know.
Jon Arne Sæterås at Smashing Magazine brings us an interesting case study of bringing the right balance between server-side and client-side implementation in responsive design.
Roger Johansson shows us the various ways you could allow a user to disable a responsive layout.
Jordan Moore responds to Roger's article, saying he's not too sure yet what to make of the concept.
Amy Gahran gives us five tips to consider when building a responsive websites.
Designer Lee Munroe takes us through the five lessons he learned whilst working on high-resolution retina displays, something we all have to consider for responsive design.
Aidan Foster takes us through what makes for building good mobile-friendly websites through responsive design.