A Brief Explanation of Tablature or "TAB"
Tablataure is an ancient form of guitar notation that has seen a huge resurgence in the last 15 years or so. You can learn to read tablature in 10 minutes. Once you learn how to read TAB, you can get online and find almost any song you want at various band websites. Or, you can buy TAB books. Most bands have songbooks for sale that show the songs in standard music notation with the tablature below.
I should note that I feel it is very valuable to learn how to read standard musical notation. However, it could take years to learn music well enough to read most rock songs. With tablature (as I mentioned above) you can learn to read the sames songs in a very small fraction of the time.