Twitter sometimes suffers from a bad reputation as the mouthpiece of vacuous celebrities and nasty trolls, but if you follow the right accounts it can be a valuable resource to improve your spelling and grammar. I’ve compiled a small list of the tweeters I find useful, thought-provoking and occasionally amusing.

Who are they? Mignon Fogerty, grammar podcaster and author of Grammar Girl’s Quick and Dirty Tips for Better Writing.
Follow for: Easy ways to remember the huge array of perplexing grammar rules.

Who are they? The go-to online American English dictionary.
Follow for: Their Word of the Day and Words at Play features. Discover unusual words and what they mean, or marvel at the idiosyncrasies of the English language.

Who are they? The Oxford University Press, publisher of the Oxford English Dictionary.
Follow for: Their blog on everything from word usage to the application of punctuation. A personal favourite is their quarterly announcement of which new words have been added to their online dictionary – words like ‘MacGyver’ and ‘awesomesauce’ recently became official!

Who are they? Makers of the writing software that helps correct spelling and grammar.
Follow for: Amusing grammar memes, helpful hints, tips, and news. A nice mixture of content.

Who are they? Grammar YUNiversity: they describe themselves as ‘the grammar bosses for generation TL;DR’ (which stands for Too Long; Didn’t Read).
Follow for: Comparisons of similar words, exploration of the meanings of common phrases, and helpful infographics on word usage.

Who are they? – they claim to be the world’s leading digital dictionary.
Follow for: Interesting word trivia, quotes and language trends.

Who are they? The Associated Press Stylebook is one of the world’s most widely-referenced style guides, originally created by American journalists.
Follow for: Style tips, notification of new guide entries, and #APStyleChat, where you can ask them all your burning grammar and style questions.