Making a subdomain more search engine friendly?

[SKMEIS]

I have a volusion website, and I cannot have a subdirectory, it must be a subdomain. Is there anything I can do to optimize this subdomain to make it more search engine friendly?

[MattAntonino]

Subdirectories are treated as (almost entirely) separate sites so your best bet is to just get the name you want, optimize it how you would a full site and not worry about the address being on.volusion.com

The keyword you choose for the domain won't matter much (EMD for weak sites) so all that matters is getting the on-page done quickly and starting your content/networking/growth.

If you have a specific subdomain question I can try to help but generally, just treat it like its own site.