Dataset URIs and metadata.

Hello,

I have just placed a Linked Data dataset online and now I am struggling 
with finding the best way to publish the metadata of the dataset. I 
wonder if there are best practices for referencing a dataset and its 
metadata, and for linking the two.

I did find out that using the Vocabulary of Interlinked Data (VoID) 
<http://www.w3.org/2001/sw/interest/void/> is a good way to publish the 
metadata of a dataset. But I still need some guidance. I have come up 
with three questions:

1) Is it common practice/recommendable to regard a dataset a resource? 
If it is, then all datasets should have a URI, right?
2) If having a dataset URI is a good thing, what should be behind the 
URI? Should dereferencing the URI lead to the dataset metadata (a VoID 
file for example)?
3) If dereferencing a dataset  URI leads to the dataset metadata, should 
there be separate HTML and RDF versions of the metadata? Or is it better 
to have a HTML page with embedded (RDFa) RDF data?

Thanks in advance for your help,
Frans