The Daily Growler
wood s lot
an eudæmonist
Avva (Russian)
Naked Translations
The Cassandra Pages
Far Outliers
Lizok’s Bookshelf
A Bad Guide
The Old Hack
Poemas del río Wang
The Flaxen Wave
ТЕТРАДКИ: Что о нас думают в Европе?
Russian Dinosaur
XIX век
The Millions (Russian cultural links)
The Calvert Journal (“a daily briefing on the culture and creativity of modern Russia”)

Language Log
Fully (sic) (an Aussie equivalent of Language Log)
Christopher Culver’s Linguistics Weblog
Jabal al-Lughat
Dick & Garlick
Polyglot Vegetarian
epea pteroenta
Ἡλληνιστεύκοντος (in English)
Word Routes
Motivated Grammar
Stæfcræft & Vyākaraṇa
bradshaw of the future
Sentence first
Languages of the World
Throw Grammar from the Train
Separated by a common language
All Things Linguistic
Johnson (The Economist‘s language blog)
Ozwords (a blog from the Australian National Dictionary Centre)
The *Bʰlog (“A blog devoted to all matters Indo-European”)
Strong Language (“a sweary blog about swearing”)

Language resources:
Arnold Zwicky’s list of blogs and resources
American Heritage Dictionary
TypeIt (IPA keyboards, language character sets)
Wikipedia:Reference desk/Language
Language Miniatures
Language References and Links
The sci.lang FAQ

Cambridge International Dictionary of Idioms
TITUS: Thesaurus Indogermanischer Text- und Sprachmaterialien
American Heritage Dictionary Indo-European Roots Appendix
Andras Rajki’s Etymological Dictionary of Arabic
Germanic Lexicon Project
English Language Links
Dictionary of the Scots Language
Das Deutsche Wörterbuch von Jacob und Wilhelm Grimm
Wortschatz Deutsch (Dutch etymology)

Latin Dictionary and Grammar Aid
Trésor de la langue française informatisé
Dictionnaire de l’Académie francaise
Centre National de Ressources Textuelles et Lexicales
Lexilogos (French)
Dictionnaires d’autrefois
Real Academia dictionary (Spanish)
Diccionari català
Vocabolario Etimologico della Lingua Italiana
Dizy: Il dizionario pratico con curiosità e informazioni utili

Dicționare ale limbii române
electronic Dictionary of the Irish Language
MacBain’s Etymological Dictionary of the Gaelic Language (1911 edition)
Cornish dictionary online
Arak-29 (Armenian links)
Verb Conjugator
World Wide Words
Online Etymology Dictionary
Tower of Babel etymological database
Perseus Digital Library 4.0
Logeion (Greek-to-English and Latin-to-English dictionary search)
Greek language and linguistics
Πύλη για την ελληνική γλώσσα (Greek portal; includes dictionary search)
Orbis Latinus (Russian dictionary search)
ПоискСлов (Russian dictionary search)
Slavenitsa (converts from modern Russian to pre-reform orthography)
Minority Languages of Russia
Ru_slang (Russian)
Vasmer’s etymological dictionary(Russian)
Russian language links
Russian literature online
Ushakov, Толковый словарь
Национальный корпус русского языка (Corpus of the Russian Language)
Большой толково-фразеологический словарь Михельсона (1896-1912)
Словарь русских народных говоров [Russian dialect dictionary]
Russian Word of the Day
Chinese Character Dictionary
The Kanji Site
Digital Dictionaries of South Asia
Monier-Williams Sanskrit Dictionary
Nişanyan’s Turkish Etymological Dictionary
Movies listed by language at IMDB
Languages online
Speculative Grammarian
Word Oddities
Jan Freeman’s Boston Globe column
Character converter