There are a lot of words lovers in this world! Here are a few that are definitely worth reading!
Let me know if you know others that should be added to this list!
Word Spy is on the lookout for new words in media, books etc. When he sees new interesting words, Paul McFedries log them on his blog.
Otherwordly is dedicated to words that are both strange and lovely. Yee-Lum handpicks lovely strange words from many different languages and presents them on her blog, along with the English definition.
The Grammarly blog points out often confused (and confusing) words like "Discreet versus Discrete" or "Flier and Flyer" and explains when to use which word.
Illustrator Ella France Sanders tells us in pictures about foreign words that don't exist in other languages.
All fields are optional and can be combined.
You can search for words that have known letters at known positions, for instance to solve crosswords and arrowords.
Lots of Words is a word search engine to search words that match constraints (containing or not containing certain letters, starting or ending letters, and letter patterns).
You can use it for many word games: to create or to solve crosswords, arrowords (crosswords with arrows), word puzzles, to play Scrabble, Words With Friends, hangman, the longest word, and for creative writing: rhymes search for poetry, and words that satisfy constraints from the Ouvroir de Littérature Potentielle (OuLiPo: workshop of potential litterature) such as lipograms, pangrams, anagrams, univocalics, uniconsonantics etc.
Please note: the Wiktionary contains many more words - in particular proper nouns and inflected forms: plurals of nouns and past tense of verbs - than other English language dictionaries such as the Official Scrabble Players Dictionary (OSPD) from Merriam-Webster, the Official Tournament and Club Word List (OTCWL / OWL / TWL) from the National Scrabble Association, and the Collins Scrabble Words used in the UK (about 180,000 words each). LotsOfWords knows 480,000 words.