There’s a lot more to a single #.
On August 23rd, Chris Messina introduced hashtags with this tweet:
how do you feel about using # (pound) for groups. As in #barcamp [msg]?
— ⌗ChrisMessina (@chrismessina) 23 agosto 2007
The hash symbol has changed online communication like never before: marketing, news aggregating, branding… Hashtags are almost everywhere!
Which is your favourite hashtag?