I quit struggling with the blankety-blank cheap fax machine in the den a couple of years ago, and finally unplugged it last summer when it began making strange grumbling sounds. The convenience of sending something out (after the machine had grabbed and mangled multiple pages a few times) was offset by a constant, noisy, influx of junk faxes. I doubt had received a legitimate fax on the machine in more than five years.
But now I have a corporate client whose client base doesn't use email. I needed to send drafts of text to some of those folks for their approvals, and the 20-something-degree weather did not encourage me to go tripping off to the local fax place.
I checked various Mac forums for info on Mac-friendly online fax services (I do not want another piece of anything requiring a cable anywhere near my desk, thank you) and RingCentral got the nod from MyOnlineFaxMachine.com as being the most friendly for sending faxes. (It also receives them, but I hope I won't have to deal with that; the approvals get faxed back to my corporate client.)
MyOnlineFaxMachine provides a 30-day free trial of RingCentral (and some of the other services), after which the plan is $10 a month. I am very happy to report that setting up the service and sending the faxes was painless.