Email and Web-Based Fax Services: eFax vs MyFax vs RapidFax
You've run out of paper; the machine is jammed; the extra phone line seems to be an unnecessary expense. But you need to send and receive faxes for your business or personal use. What to do?
The Web abounds in e-fax services that work through your computer and a scanner, if necessary. Each one prices its services slightly differently, so direct comparisons are complicated. You need to determine your needs: an occasional fax, one a day, many dozens a day/week, etc., before you can select accordingly. Prices average about $10 a month, with some sites offering a large number of faxes within that price; others charge per page, so prices can go up quickly if you are a heavy user.
Try this useful site, published by Kevin Savetz, that explains many different services (and has user ratings).
Kevin Savetz' site does not rate eFax, likely the biggest online service that highly. Nor does David Goldenberg of Bnet. In eFax's favor, though, is that it provides incoming fax numbers from a number of international locations, providing you with that "local" flavor, even if you are not in Greece, Hong Kong, Denmark or Estonia. If you go to Rapidfax from Savetz's site, you will receive a $2 a month discount.

Comments
The site you linked to does review eFax -- it's in the section "Commercial Services -- Faxing from the Desktop". The reason is that eFax requires you to download a viewer to your PC, whereas the services in the first section don't require any download.
Also check out www.faxdigits.com They have free incoming faxes to your mailbox. You can also sign up for their VOIP service and use it as a free incoming line with voicemail. www.freedigits.com. I find the latter very useful. You can give that number to all the salesmen and then return only the calls you want.
Very interesting. I send people scans of documents instead of faxes, so all I really need is an inbound fax service. Does Fax Digits have any drawbacks?
The phone number is usually some distant area code. I am in California and my fax number is in Iowa. The faxes come as PDF files.
I just signed up for this -- v fast and simple to sign up -- literally took two minutes. I'll let you know how it goes.
You can receive free faxes and voicemails at k7.net
You can compare the five most popular fax services at WebFaxI...
I'd be really nervous to trust WebFaxInfo, because its "Top Pick" (in the right hand column) is an ad. That makes me think that there's no objectivity to that site at all, and they're just being paid to promote someon's fax service.
Most sites have ad's of course. I liked the site because it does show the info from several fax services all in one place.
I use Skax to send my faxes online and works out really well. I travel alot and most of the companies i deal with like faxes so I use skax really often. Its prices are good and it allows me to send a variety of formats. the link is skax.net
You can use faxsv.com in order to receive your faxes to email sometimes. It's free. It's also good when you want to send your fax to somebody who don't have any fax2email service.