[[Image:Blaine Cook FOWA Miami 2008.jpg|thumb|Blaine Cook at FOWA Miami]]
'''Blaine Cook''' (born 19 December 1980) is an AmericanCanadian software engineer. He is the principal co-author of the [[OAuth]] specification. He is the former lead developer of social networking site [[Twitter]].<ref>[http://news.cnet.com/8301-13577_3-9926813-36.html Twitter techie Blaine Cook talks about leaving | The Social - CNET News.com<!-- Bot generated title -->]</ref> He has worked for Yahoo on the [[Fire Eagle]] project<ref>[http://www.techcrunch.com/2008/07/16/yahoo-hires-former-twitter-chief-architect-blaine-cook/ Yahoo Hires Former Twitter Chief Architect Blaine Cook<!-- Bot generated title -->]</ref> and is currently a member of [[Osmosoft]], a small team of [[Open Source]] developers at [[BT Group]].<ref>[http://www.osmosoft.com/#%5B%5BBlaine%20Cook%5D%5D Blaine Cook, Osmosoft.com]</ref>
