The hardest part about using responsive images in your web projects is—well—everything. The good news is that there are tested solutions that you can safely implement today while we wait for the browsers to sort things out. In this session you will learn what to consider when deciding on a solution for serving images to your users that are appropriate to their screen size and will walk away with several techniques to try out right away.
Speaker slides can be found here: http://www.slideshare.net/joemcgill/responsive-images-stl-wordcamp-2014