- https://twitter.com/guardianstyle Style guide of the Guardian newspaper. You can ask them questions about word usage.
- https://twitter.com/OxfordWords Oxford dictionaries. They tweet a Word of the Day and links to articles on their website.
- https://twitter.com/awad A Word a Day from www.wordsmith.org.
- https://twitter.com/MerriamWebster Merriam-Webster dictionary. They tweet a Word of the Day.
- https://twitter.com/MacDictionary Macmillan dictionary. They tweet links to their blogposts.
- https://twitter.com/learnglionary Dictionary of errors. Learn English from your common mistakes. Errors accompanied by corrections and explanations. You can also visit their website http://www.learnglish.net/dictionary/
- https://twitter.com/wordspy Dedicated to neologisms i.e. new words and phrases. Their website is at www.wordspy.com
- https://twitter.com/grammarmonster As the name suggests, it is about English grammar. Their website is at http://www.grammar-monster.com/
- https://twitter.com/writing_tips Daily tips on grammar, spelling, punctuations and freelance writing. Their website is located at www.dailywritingtips.com
- https://twitter.com/apostropheabuse Gives examples of misuse of the apostrophe.
And why not visit this page to see how good your spellings are: Oxford dictionaries spelling challenge
