Learning blues guitar is something that every guitarist should spend time doing. If you are already a blues fan, great. If you aren't then you shouldn't let that stop you. Why? Because a lot of the music we listen to today has branched out in one form or another from blues music, or at least is largely influenced by it.
You can often hear forms of blues in many genres of music from metal to jazz, even more so in rock. Learning blues is great for guitarists, especially if you want to learn lead guitar. Blues can be simple or difficult but a great advantage to the lead guitarist is it can get you going very quickly. It's also a great jamming tool because musicians can generally jam together very quickly and easily by jamming the blues.
Articles and Tips For Learning Blues Guitar