http://www.monitis.com/blog/2011/06/13/top-8-application-based-iis-server-performance-tips/

http://sharepointpromag.com/sharepoint-2010/top-10-sharepoint-2010-configuration-mistakes-and-how-fix-them

https://www.leansentry.com/Guide/IIS-AspNet-Hangs

http://forums.iis.net/t/1147420.aspx?Intermittent+Slow+Response+Times

http://blog.fpweb.net/troubleshooting-sharepoint-sluggishness-server-side-issues/#.VhgNrROqpBc