Contemporary guitar music comprises an awful lot of my listening library, and I thought that I would point out some of the incredibly good guitar technicians out there with a whole whack of videos.
Fantastic use of looping and midi sounds.
This guy redefined the acoustic guitar pretty much completely.
My favourite of Don's earlier pieces. Don is not just a guitarist, but a well rounded composer, as well! This piece is fun to play!
Pino is WAY out there. The ending to this snippet is quite sudden.
Antoine's use of extended guitar technique is phenomenal. Easily one of the more pyrotechnic guitarists out there.
CRAZY bassist. He's got six detuning levers on his bass, and uses every one in this piece.
All of the players here with the possible exception of Pedro Tagliani make extensive use of altered tunings in their music. "Midnight March", for example, deviates from the standard guitar tuning of EADGBE by using EACGCD. This presents a whole new set of challenges for the performer, because previously learned scales and chords are now of little use. As a composer, though, the use of altered tunings brings the guitar to life, enabling a whole range of harmonics and sounds that would otherwise be inaccessible to a conventionally tuned instrument.
This list doesn't include some incredibly noteworthy figures such as Andy McKee, Tommy Emmanuel, Gareth Pearson, Dylan Fowler, and Pierre Bensusan, but by all means, you should check those guys out too! I'm curious to see what you fine folks think of this kind of stuff!