I started using subdomain like forums.yourdomain.com
I found out that I am unable to submit subdomain to google or msn like normal domain in the webmaster tools.
Subdomain are not shown in the search engine.
My main domain content does not have links to link to my subdomain, as they are consist different content.
May I know what the steps you all do to make subdomain appear in google/yahoo/msn search?
You can use an extension here to create and submit your sitemap to Google/Yahoo/MSN