This is just a helpful thread for beginners, so if you pretty much know how to play like an expert, don't read this.
I've done google searches for guitar lessons and found quite a few websites that are really helpful!! The only reason I'm doing this is because most people don't want to pay 5$ a month to be able to watch videos on this site....
Some of these websites have videos, most of these have mp3 sounds, but here they are :).
http://www.cyberfret.com
http://www.guitartips.com
http://www.crossroads-guitar.com
http://www.guitaralliance.com
Again, all of the listed above have mp3 and some have videos, try 'em all out!!
Sincerely, RockZilla