Kevin Savetz has a Great Fax resource...
http://www.savetz.com/fax/

And a Bunch of other interesting Niche web concepts...

With some Good “'twistable” information & ideas inside...

Worth Studying...

http://www.freefaxcoversheets.net/
http://www.savetz.com/
http://www.savetzpublishing.com/

And one more good Fax service...
http://www.faxdigits.com/

Phil