The National Association for Music Education (NAfME) website contains many resources for music educators, including membership information,

Soundtrap is a free, cloud-based DAW, with a library of looped sounds and the ability to enter new audio. Users can also easily collaborate with others, and the program can be accessed via computer, tablet, or cell phone. It provides a user-friendly experience that music students can work with to express creativity through composition.

Kahoot! is an online/cloud-based program that allows users to create multiple-choice quizzes that are played on electronic devices (cell phones, iPads, etc.).

Musictheory.net is a great resource, not just specifically for music theory students, but for all students of music. The "lessons" section is great for introducing new concepts of theory, and the "exercises" section is a fun way to quiz and practice these concepts. The site contains lessons and exercises regarding notes, intervals, triads and 7th chords, scales, key signatures, guitar tablature, and other subjects. I have found it to be very useful for extra practice for my AP Music Theory students.

The College Board's AP Music Theory homepage is an invaluable resource for AP Music Theory test preparation. It contains resources for both teachers and students, including descriptions of the course, articles about teaching AP Music Theory, score reports, and a listing of professional development opportunities and seminars. Most importantly, it contains an archive of past free-response test questions (including both harmonic and melodic dictations) and sight-singing examples, along with (scored and annotated) example responses.

The Sight Reading Factory generates excerpts of music based on parameters entered by the user. It is especially useful for practicing specific areas of music-reading skills (e.g. bass clef, odd-meters, difficult rhythms), or reinforcing general concepts of reading traditionally-notated music. While the site is good for the practice of mechanics, one might argue that robotically-created music is less useful for the development of musicality (or that computer-composed music isn't "music" at all). Excerpts can be generated for individuals singing or playing instruments, or for ensembles. There is also a section for solfege pattern practice. This resource creates sheet music excerpts for reading practice, without much regard to form or structure--it does not generate full works of literature for performance.

The Solfeg.io program is a web- and subscription-based tool for individual or group learning of specific popular songs. There is a list of pre-loaded popular songs with scrolling piano parts and lyrics, along with lead-sheet symbols and drum parts available. The software helps teach music reading and learning by ear using a scrolling video interface.

The Learn Jazz Standards website contains a comprehensive list of jazz standards, including lead sheets (in different transposing keys), essential and/or original recordings, and a recording of a rhythm section playing through the chord changes several times (a la Jamey Abersold). Often, these "jazz minus one" rhythm section recordings are offered in a few different keys. The site also includes a blog, podcast, and a list of articles on the topic of jazz. This resource is especially helpful for melodic instrument jazz players, giving them practice with chord changes, and I use this site frequently in my jazz classes.

Musictheory.net is a great resource, not just specifically for music theory students, but for all students of music. The "lessons" section is great for introducing new concepts of theory, and the "exercises" section is a fun way to quiz and practice these concepts.