Conditionals on sidebar is a very handy feature for dynamic content (I should definetly spend time with wordpress now to explore its versatile usage).
Plugin you have mentioned above is great, but the same adds lot of code to .htaccess (I hate to touch this file) which shall create problems in case we plan to change our hosts in future and/or changes made to to server software.
This might lead entire site to collapse in a moment.
our site http://www.mydomainname.com is a production site and I am placing wordpress as a articles/cms/news publising feature here.
Using the dynamic sidebars, we can do miracles with wordpress :-).
Can you make a wild guess if techwhack.com I assume they are using the sub-domain plugin as well ?
thats a very impressive way to publish content online.
If you have better examples of publishing articles/news please share, this can give us better idea about power of wordpress.
Morever, does wordpress also offers paid/priority support options ?