US Academic Keyboard Layout is a complex keyboard layout based on the principles of U.S. Extended, but with a much larger scope. Via dead keys you may get almost all the characters defined as 'Latin', also Combining Diacritical Marks, IPA, various symbols and punctuation. This is an ideal tool for linguists, phoneticians, dialectologists and all those who currently or occasionally use a large set of Latin-based characters.
What's new in US Academic Keyboard Layout
Keyboard layout for editing linguistic and dialectal texts, radically revised according to Unicode 6.x additions and corrections.