You can now add speaker notes and embed YouTube videos in Google Presentations.
Standard, Premier, Education, Team and Partner Editions
How to access what's new:
Sign in to Google Docs, open a presentation and click the speaker notes icon at the bottom right of the screen to add speaker notes. Click 'Start presentation' and then click 'View speaker notes' to see your notes.
To embed a video in a presentation, open a presentation for editing, click 'Insert video' and search for the video you want to embed.
For more information: