Quote (Toothfariy @ Oct 31 2011 09:51pm)
You know, not to shoot you down or anything; but if you ask me, lessons are really not nessessary.
Depends on what you want to learn and how properly you want to learn it. Efficient guitar technique is difficult to demonstrate; even if you can emulate what they're playing, you may not necessarily be able to emulate how they're playing it. As well, while adequate resources exist for tonality related to the major scale and its modes, instructions are sparse for basically everything else and even though you may get a write-out of, say, the locrian nat6 mode, you will probably not receive an explanation of where to use it or where it's from.
Also, important things like voice leading and chord-melody composing tools are not readily taught online but are pretty key to the whole "playing the guitar well" experience.