What does it take to build an online community like Flickr’s? And how can we tell if interface design conventions we take for granted actually help or hurt users? In Issue No. 258 of A List Apart, for people who make websites, George Oates, a key member of the core team that shaped the Flickr community, tells what it will take to build the next Flickr (hint: the answer isn’t Ajax). And Jessica Enders drops some science on the widespread belief that zebra stripes aid the reader by guiding the eye along a table row.