My Web Site Description in OWL

Hi, I'm trying to provide an rdf (preferably OWL) description of the resources contained in my web site. At the higher level, a web site is a set of web resources. RSS 1.0 may be a good starting point. It provides properties to specify a title of a resource, an autor and the mime type. But I have two questions :

(1) I'm wrong if I use a Resource as target of the dc:creator property?
(2) instead of string, there are uri's that represents media types?

Then, i would like to say that the online resource contains information about something. I think that seeAlso is not enough expressive.

Suggestions?

Thanks in advance,
Cristiano Longo