Hashtags are the # symbols used on Twitter and other social media, like Instagram and Facebook.A hashtag provides a metadata-tag or label to indicate the subject of a tweet or a post. Twitter co-founder Chris Messina, spotted that this would allow messages to be grouped according to content, making them easier to find - see here.
A Twitter search for hashtags, for example, will bring up tweets containing #hashtag.
Is there a protocol regarding the use of hashtags?The evolving protocol is that more than two hashtag per tweet is trying too hard to attract traffic.
Most successful use of hashtags?The most celebrated/infamous user tweeter is, of course, resident in the White House. Here are the hashtags Donald Trump used most heavily during his election campaign:
#MAGA (Make America Great Again) is perhaps the most effective hashtag of all time. #ICYMI (in case you missed it) is shorthand familiar to regular social media users.
But aren't Twitter users generally #antitrump?Though #antitrump sentiment dominates Twitter its hashtags have been less effective. The problem is that the anti-Trump camp covers the complete political spectrum. For example, left wing #resistance tweeters alienate conservative #nevertrump supporters.
What to avoid?Twitter has a short attention span and can be ruthless. Tedious, self-serving platitudes (#hardworking) can invite derision while amusing trivia (#CareerEndingTwitterTypos or is more likely to attract traffic
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