Differences Between Classical and Hellenistic Greek: A short introduction by J. C. Treat, University of Pennsylvania.
Euromosaic - Greek: Sociolinguistic survey of the use of Greek as a minority language in Calabria (southern Italy). Collection of links.
Greek Language and Linguistics Gateway: Links to resources, in print and on the Web, for classical and Biblical (koine) Greek linguistics.
Greek Morphological Analysis: An interactive analyzer for Greek words, in Latin transliteration.
Greek through the Internet: Lessons in modern Greek, with a short history of the language.
Griko - Greek in Italy: Information about Greek-speaking minorities in Italy.
Introduction to Modern Greek: A course covering the alphabet, numbers, grammar, and calendar.
The Greek Language: History of its evolution from the earliest texts to the modern language, covering variant forms of the language, its writing system, and countries where it has been used.
The Greek Language: Modern Greek grammar, phonology and word classes with some historical background.
Ukindia - Learn to Read Greek: Two easy lessons for the Greek alphabet.