In the past I’ve written plenty about the emergence of video. Viddy and SocialCam were among those jostling to become the “Instagram for Video,” and more recently YouTube launched its instant video-sharing app, Capture, to compete.

On Thursday, Twitter, which severed ties with Instagram back in July, introduced a six-second video-sharing app called Vine, which it acquired back in October.

“Posts on Vine are about abbreviation — the shortened form of something larger,” Vine co-founder Dom Hofmann said in a blog post. “They’re little windows into the people, settings, ideas and objects that make up your life. They’re quirky, and we think that’s part of what makes them so special.”

Vine is available for free in the iPhone App Store (search “Vine Twitter”). According to its blog, Twitter is working on launching Vine on other platforms. The mobile service allows users to capture and share short videos in six seconds or less.

“Like tweets, the brevity of videos on Vine … inspires creativity,” Twitter said on its blog. “Now that you can easily capture motion and sound, we look forward to seeing what you create.”

After downloading the app, you can sign in either with your Twitter account or through email. Upon signing in, you are treated to the top “editor’s pick” video. In the top right-hand corner, there is an icon to shoot and record video.

During your first video, the app will take you through the process of shooting and recording a Vine video. To record, it’s simple: tap your screen to start and hold until you want to finish recording. You can record multiple clips during your six-second video and upload and share your videos to Twitter and Facebook (as you can see from the screenshot above, I had a little trouble uploading my video).

Here’s an example of a video and my first post on Vine.

Immediate reactions

On the surface, Vine seems like an incredibly easy-to-use video sharing app. By forcing us to share multiple clips in a six-second format, Vine entices users to create and share everyday activities. The app is much different that YouTube, Viddy and SocialCam due to its length and the ability to seamlessly record multiple clips in the same video.

Give it a try, and tell us what you think in the comments below.

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