We often discuss Arabic dialects here, and here are a couple of additions:
A while back I linked to an article on how an Israeli researcher had claimed Cairo's jewelry merchants used a secret language that included Hebrew words. That same scholar has also produced a more thorough study of the dialect of Egypt's (now nearly gone) Jewish community:From the Israeli Academic Center in Cairo: Gabriel Rosenbaum, "The Arabic Dialect of Jews in Modern Egypt."
I recently linked to the first two parts of Lameen Souag's notes on Algerian Darja after a trip to his hometown, so for completeness' sake I should link to Part 3 as well.
[view whole blog post ]