Other
Bob's Byway: Glossary of Poetic Terms
Calling itself "unique," Bob's is easy to use, with cross-links throughout, phonetic pronunciation guides when necessary, and many examples and quotations. Click on the letter and scroll for the word.
Curated OER
History of Haiku: Basho Matsuo
This site describes Basho's writing style, including his sense of humor. It also provides several examples of his poetry.