MusicArrangers.com 
Tips and tricks for music composers and arrangers: beginners music theory and orchestration, musical instruments range and transposition. Also downloadable sheet music.
http://www.musicarrangers.com/Soda-o-rat Music Transcriptions, The
More than 100 personal transcriptions of classical and anime songs, mostly for piano solos.
http://membres.lycos.fr/sodara/
Berkleemusic - Arranging Courses
Links to courses available online from Berklee School of Music in Boston include basic arranging, film scoring, and notation using Finale or Sibelius. With fees.
http://www.berkleemusic.com/school/courses/music_arranging
