Best eFax service for a small shop that doesen't host its own email or domain?

[acemcmac]

Anyone have any reccomendations? It has to be robust. Ideally, I'd like to see some software I'd install on each of their pc's so they can print to the fax service and all incoming faxes should be able to be forwarded to a list of email addresses.

 

[acemcmac]

bump