Twitter users have grown accustomed to short, real-time text updates. Now, Israeli startup Yevvo is trying to convert that principle into video-blogging, by offering short HD broadcasting that can only be viewed live.

No one likes the "buffering" sign that appears on our screens when we're trying to watch HD videos, which are large files. Israeli startup Beamr has developed an algorithm that can cut video file size by half – while keeping the original image quality.