By the time he was 14, he had co-written the specification for RSS -- originally Rich Site Summary, now Really Simple Syndication -- a Web-publishing technology for delivering syndicated content from frequently updated sites, such as blogs or news websites.

CNN: How Aaron Swartz helped build the Internet

If traffic numbers change my demeanor, so do the ups and downs of user engagement and our need to ramp up output of tablet applications, improve our mobile offering using HTML5 and reduce the various technology glitches that come with pushing the boundaries of Web publishing and building a complex social experience.

FORBES: Update: Record Traffic, New Products -- and our Fix-It and To-Do Lists - Forbes