Jeff Atwood cofounded and built Stack Overflow in 2008. The site, which features questions and answers on all things programming, grew into the Stack Exchange network—a free, open collection of 89 sites on topics from cooking and photography to IT security and cognitive science. Stack Exchange aims to make the internet a better, more informed place, and in four short years, it's doing just that. The network has more than 2 million users, 4 million questions, and 9 million answers. Jeff is also the voice of Coding Horror, where he's been blogging about programming and more for nearly a decade. We caught up with Jeff to chat about what's next (he left Stack Exchange earlier this year), as well as his favorite gadgets, best advice, and why he'll never use a to-do list. Want to know more? Jeff is chatting live for the next hour. More »