I’ve been using eFax Free for awhile, but have been having problems with a pile of spam faxes filling up the “free” 20 faxes a month, and having them cancel accounts on me. I finally found a decent replacement – k7. They offer a free DID in the Seattle area, with fax-/voicemail-to-email service. Seems to work pretty well.. nice for those occasional fax users like me! In any case, I recommend it – not sure I’d send anything private through it (or any other external fax-to-email gateway), though.. I’ll have to post further once I’ve actually gotten some use out of it.