24 Rune Poems by Óðindís: Twenty-four new alliteration rune poems by Óðindís,
A Poet's Guide to Alliterative Verse: Detailed explanation of the principles of alliterative poetry, with classical examples, zine, and resource articles.
Alliteration in Poems: Examples of alliteration and a worksheet for children and teachers.
TRINPsite: Vocabulary of Alliteration: ". . . a new aid in writing poems and songs."
Wikipedia: Alliterative Verse: Article with sections on common features and Old English and Old Norse poetic forms.