Here are things you should know about Vine, Twitter's rising video-sharing mobile app.
1) Vine, Twitter's video-sharing application, can be found online at Vine.co. When shared in a tweet, all clips post to Vine live at Vine.co, instead of Vine.com. Why? The latter domain name belongs to Amazon.
2) Why was the app named Vine? A source says it's short for Vignette, which is defined as "a short impressionistic scene." Vignette is also the name of a photo filter offered by the signature Twitter app.
4) Vine's logo connects the "V" and "I" in its name in the same way a vine loops and wraps itself around a tree. Even cooler, if you turn the logo upside down, it displays the number of seconds your mini-video can be—"6."