Pete Cashmore, CEO at Mashable, a social media company, and one of the most followed Tweeters on the Net at 319,528
Followers explains #followfriday at Mashable on Tumblr – How #FollowFriday and Hashtags Work. :

Since a lot of people are asking me about hashtags, and a Tweet isn’t enough space to explain, a few quick lines on how hashtags and #followfriday work:

1. Hashtags are used to identify a topic on Twitter. Add # to the front of a word to make it a topic. Example: #followfriday

2. #followfriday is a game in which people suggest who to follow on Twitter. It helps everyone find interesting Tweeps. You list the users you recommend following and add “#followfriday” so people can find your tweet. My suggestions: #followfriday @adamostrow @sharonfeder @jbruin @adamhirsch

3. You can find everyone’s #followfriday suggestions here: http://search.twitter.com/search?q=%23followfriday

Hope that helps.

PS. Pete had nothing to do with the invention of #followfriday. You can thank @micah for that!

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