The biggest difference between j2 and eFax is how you handle the attachments. With eFax, it's simple. Just select the file, such as a Microsoft Word document, and send. eFax will automatically convert the file into an image file. With j2, you must convert all attachments to TIFF (that's a type of image file) before you send.

This extra step can be a real pain, especially for Web-based email accounts. If you have a MAPI-compliant email package such as Outlook, it's a little easier. Simply print the document using the JFaxSend driver, and it will automatically open your email program with the document already selected as an attachment.

The difference in service between these two companies is moot, though. That's because j2 and eFax finally completed their merger earlier this year. The other differences between j2 and eFax are found on this printable cost comparison chart.