Now I know you might be confused by this diagram, so let's take a moment to explain it. First off, the top of the diagram corresponds to the nut on your guitar, that's the part where the strings end, farthest from your body. Left to right, the strings are 6,5,4,3,2,1. So as you look at the diagram, the string on the left is actually the 6th string on your guitar, the low E string.
There's an abundance of guitar information out there on the web, some good, some not. I stumbled across Justin Sandercoe's site a year ago and now tell everyone about it. The lessons are conveyed so clearly, concisely and in the most congenial way. The site is laid out logically as well so you can to go straight to your area of interest... beginner, blues, rock, folk, jazz, rhythm, fingerpicking... it's all there and more. Spend ten minutes with Justin and you'll not only play better but feel better too. From novice to know-it-all, everyone will learn something from Sandercoe.
After you have selected a style and a teacher, you may want to keep some extra questions in mind for your first guitar lesson. An in person lesson can be very valuable, if you show up, and if you do the work that the instructor gives you for when you are not meeting. One of the greatest methods of improving is to consistently play. Play multiple times a week, get those practice repetitions in.
Using the same claw-like finger positioning on the second fret, you can play an F# chord. Move to the third fret, and it becomes a G chord. It's a difficult finger positioning to learn, but you can start playing the chords to any rock or pop song relatively quickly when you learn to strum and play barre chords. The Ramones, for example, used nothing but barre chords to great effect.
Intermediate Guitar Class - Open to all ages, from age three to one-hundred sixty-three, but an audition or permission from the instructor is required. This class is intended to be challenging. Topics covered may include movable bar chords, song forms, repertoire development, fretboard mapping, improvisation, and other advanced techniques. New classes start every month and may be repeated as often as you like. Cost is $85 per month (4 hours).