As far as I know, Internet Archive does not maintain "HTTP Archive" (http://httparchive.org/). HTTP Archive was founded by and is being maintained by Steve Souders (Chief Performance Officer at Fastly - http://www.fastly.com/). He's previously held titles at both Google ("Head Performance Engineer") and Yahoo!. He's also a co-founder of the popular web-development debug add-on Firebug.
Sources: http://httparchive.org/about.php and http://stevesouders.com/about.php