I do teach in good old Germany, Dresden to be more specific.
I studied Music (Acoustic and Electric Guitar) at Music Conservatory in Rostock and Dresden (yes, together with Martin Miller, he actually was my fellow student… 
).
Then I went to Brazil (oi @felipearanha, como vai? que bom ver brasileiros aqui! 
) to study Chorinho and Brazilian Popular Music (MPB) in Salvador da Bahia and since 5 years now I’m a professional music teacher with diploma.
I do workshops, one by one lessons and band coaching.
Main topics are “how to play by ear” (I wrote a [guitar] method on how to develop this at the same time you get to know your instrument… applicable to other instruments as well), “rhythm and body percussion”, “guitar technique” and “writing riffs”/“composing” (as you can see in my recent posts to using Konnokol/rhythmical structures on [metal] riffs: Making Riffs using Konnokol)
My main instrument is obviously the guitar in all it’s forms (6, 7, classical, electric, fretless), but I also play and teach mandolin, piano, bass, ukulele and drums (on a basic level).
If you’re interested in my stuff, feel free to check out:
www.stephanpankow.de
(still only in German, but I hope one day I’ll fix this with a newer version of my site…)