17 Misused And Made-Up Words That Make You Rage - Adam Ellis and BuzzFeed FTW* (*for the win)
​The 10 Most Beautiful Words in the English Language - by Tyler Vendetti
10 Words That You've Probably Been Misusing - by Tyler Vendetti
10 More Words That You've Probably Been Misusing - by Tyler Vendetti
(apparently I find Tyler's posts interesting, amusing, entertaining or something)
Easily Confused or Misused Words - an impressive list of more than 40 examples
Misused English language phrases - yes, English can be very confusing, even if it's your "first" language
World Wide Words - an awesome site that has gathered a heap of content over many years
Five Words - a site encouraging the creative use of words, five at a time
Wordsmith.org - features a daily word with its meaning, etymology, usage and pronunciation
Merriam Webster's Word of the Day - increase your word power
Unusable words - a very interesting article by Brad Leithauser for The New Yorker
Oxford Dictionaries - more than a reference; explore interesting word origins and their blog
The Wonderful World of Words Facebook page - follow me!