Testing our page loads and optimizing

K pointed out some excellent page-load speed resources for testing and optimizing:
http://googlepagespeed.com/
http://code.google.com/speed/page-speed/
http://modpagespeed.com/
And for testing, http://www.webpagetest.org/

As suggested by webpagetest.org , I have enabled compression on media.radiosai.org as given in this article: basically
cd c:\InetPub\AdminScripts
cscript adsutil.vbs set w3svc/filters/compression/parameters/HcDoStaticCompression true

cscript adsutil.vbs set W3Svc/Filters/Compression/GZip/HcFileExtensions "txt" "htm" "html" "js"

cscript adsutil.vbs set W3Svc/Filters/Compression/Deflate/HcFileExtensions "txt" "htm" "html" "js"

cscript adsutil.vbs set W3Svc/Filters/Compression/GZip/HcDynamicCompressionLevel 7

cscript adsutil.vbs set W3Svc/Filters/Compression/Deflate/HcDynamicCompressionLevel 7

cscript adsutil.vbs set W3Svc/Filters/Compression/GZip/HcOnDemandCompLevel 7

cscript adsutil.vbs set W3Svc/Filters/Compression/Deflate/HcOnDemandCompLevel 7

I have not enabled the compression for aspx and other dynamic files, I have not disabled for HTTP 1.0 or proxies as given in the last two lines: will do that if problems arise.

Also set in content expiration as 1 day from the IIS Manager. http://www.radiosai.org/ had some difficulty in setting compression, since it is a shared environment under Plesk. Did contact nettigritty team about it anyway.