Proposed changes to slow start 

code.google.com/speed/articles/tcp_initcwnd_paper.pdf states that google have proposed that the initial window gets increased by a factor of about 3 to take into account modern networks and effect of slow start on http latency. Perhaps it's worth adding something about this?

See also http://blog.benstrong.com/2010/11/google-and-microsoft-cheat-on-slow.html