#1
Ok, first of all, thanks for reading this! If I've missed anything, PM me suggestions to add to this thread.

Here are some useful links -

Tuning thread (all info about tuning here!)

https://www.ultimate-guitar.com/forum/showthread.php?t=437340

String changing thread

https://www.ultimate-guitar.com/forum/showthread.php?t=754081

Music Theory (how notes and rhythms work together)

http://www.youtube.com/view_play_list?p=58DA70A2123C71CD (my vid series for people new to theory - common sense and simple)

http://www.ultimate-guitar.com/search.php?s=crusade&w=columns ("The Crusade" - an excellent series of columns, again written from a common sense point of view in a simple style)

https://www.ultimate-guitar.com/forum/forumdisplay.php?f=8 (UG's theory forum for trickier questions)

General free lessons and stuff...

www.justinguitar.com is fantastic! Make use of it.
http://www.zentao.com/guitar/
http://www.robertomoretti.com/
http://www.guitarprinciples.com/
http://www.good-ear.com/
http://www.musictheory.net/
http://www.jazzguitar.be/
http://www.rgt.org/
http://www.justinguitar.com/
http://www.davemarks.com/
http://www.discoverguitaronline.com/

And obviously, mine are in my sig.