JohnRoy - 4:53 am on Jun 6, 2007 (gmt 0)

G Webmaster Guidelines # Make sure all the sites that should know about your pages are aware your site is online. # Submit your site to relevant directories such as the Open Directory Project and Yahoo!, as well as to other industry-specific expert sites.

Can someone explain how one can make sure ALL the sites that should know... are aware

It means something different that directories.