THE HEBREW ALPHABET: The Unusual Pe Preceding Ayin Order in the Acrostics of the Book of Eikhah (Mitchell First, Jewish Link of New Jersey). An interesting application of evidence from the Dead Sea Scrolls and ancient Hebrew/Canaanite inscriptions to an old crux interpretum in one of the Psalms.
There is more on the Tel Zayit abecedary inscription and related finds here and links.