It is something we certainly wrestle with here in the social media land of the library, and thanks to Kevan Lee writing at Buffer Social we have something approaching a definitive guideline that is backed up by research. To summarise try this:
A tweet of 100 characters
Facebook posts less than 40 characters
Headlines limited to 6 words
Blog posts that take 7 minutes to read and contain around 1,600 wordsAlthough you have to factor in the amount of time we might spend looking at photos, which would reduce the amount of time spent reading. These guidelines come with a disclaimer that it really depends on your audience, the content, and the quality of writing.
Domain names with 8 characters
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