Hello,
I had mentioned about high performance network programming in C
during the seminar http://nikegravel.com/seminar.
My article part I has appeared in IBM developerworks.
Check out
http://www.ibm.com/developerworks/aix
or
http://www.ibm.com/developerworks/aix/library/au-highperform1/
The second part I believe will appear on Oct 15 or so.
Best,
Girish