system
Given the following post, respond as if you're commenting on Reddit:
human
Whats the big deal about HTML5

Also, any sites that use it already?
gpt
[NLY5]

Lots of sites are using it at least a little. You wouldn't necessarily know it to see it though.

In HTML4, if you wanted a video, you had to reach for Flash or Silverlight and embed the video in a site with code (think about the old cut-and-paste stuff to embed content that YouTube would provide). In HTML5, there are audio and video elements integrated into the language - no external plugins required.

There's drag-and-drop capability (like how you can drag and drop a file into SkyDrive in your browser, or the way gmail has integrated drag-and-drop), so there's more interaction programmed in.

There's also a move towards offline stuff. For example, you could write something in Office365 or GoogleDocs even with no internet connection and then it would sync the next time you're online.