Here is a great resource for you guitar players out there. Especially if your like me and very much a learner. Kim Davis and Mike Stangeland have a site with loads of excellent guitar tab with chords in tabledit format. This allows you to practice along with the music at a tempo you choose. I really like this feature for practicing guitar back up/rhythm.
Interestingly, these two folks travel full time in a large Winnebago type camper. They post some interesting blog entries and photos of their journeys.
Oh yes! Free! This is not a commercial site.