As science on the internet matures, an actual history of science on the internet necessarily is spawning. Scientific American columnist Bora Zivkovic has written an in-depth article going back into our recent memories: take a walk back in time to the days of usenets, html perl scripts and plain old flame wars.
See also: http://sandwalk.blogspot.com/ (evolution and history of science)
http://blogborygmi.blogspot.com/2004/09/grand-rounds-archive-upcoming-schedule.html (medicine)
Pandas’ Thumb: http://pandasthumb.org/ (evolution)