School Library Journal is an excellent source of high-quality articles on technology integration. In many districts, your librarians are your go-to ed tech resources on campus.
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Video in the classroom can also promote strong discussions, liven up a lesson, and can be downright fun.
I'm more familiar with TeachingChannel than Mission100percent, but both are excellent tools - especially for future teachers.
Screencastify is a video screen capture program that stores video in a special folder in Google Docs.
Snag It is also a Chrome app and extension that allows users to capture and manipulate still images from their screens, as well as capture video with narration.
Edpuzzle is a YouTube annotation tool for creating or editing YouTube videos by clipping the source, and adding narration, quiz questions and comments.