The Guitar tuning video's are free and I think some of the sites offer guitar lessons.I have looked at the video's and I think they are good
I will write comments if I think there is something that could be confusing or added. The first video shows how to tune the Guitar. The next two let you tune your guitar to the video. I guess you could call it online tuning so you might want to bookmark it. The 4th video shows how to use an electronic tuner.
The video changing strings on the Acoustic Guitar is good or you can just take it to your local guitar store or if you have a guitar teacher they will help you.
