Vine is a video service owned by Twitter that allows you to create and share six-second looping videos. To get a sense of what Vine is like, just follow Vine at Twitter: it's full of fun Vine videos. Vine also has a website of its own: Vine.co.
To see an example of an educator who uses Vine, check out John Spencer's Vine site. I've retweeted one of his Vines here:
very nice VINE example from @spencerideas — Writing idea: reinvent fantasy football with real elements of fantasy. https://t.co/XXhQVqXUlW— Laura Gibbs (@OnlineCrsLady) December 18, 2015
If you want to explore making your own Vine videos to share at Twitter, I've compiled some resources here: Twitter and Vine.
NEXT STEP => So, you've now looked at Classic Retweet, Twitshot, Storify, and Vine... next up: Tweetdeck and Hootsuite.