If you want to find the feed for a specific site, put the url for the feed into the searchbox and it'll either show you what the feed is or ask you to create one (which anyone can do on DW, it's not a paid feature).

As it happens, one doesn't exist, but you can add one by clicking here and naming it ;-)

It is fair to say that the interface to allow searching for specific sites could be more userfriendly--I never use it as i've hacked my browser to do it automatically, but i think the feed search solves your problem?