Fretmentor offers instructional materials, as well as T-shirts and novelty items for sale.  Purchase instructional CD-ROM's to complement the Fret Mentor program.  If you are looking for songs to play, Fretmentor arranges individual songs that are in a format known as Tef (from Tabledit).  These can also be purchased as well.  To make a purchase via paypal or check, contact fretmentor (david @ fretmentor) via email for prices and shipping charges (if applicable), then click the paypal button to pay.  It is that easy.