Please leave a comment if you know about more commands.
Thanks for writing this list.
Reshared post from +Peter Bailey
Jelly Bean Voice Command Cheat Sheet
Google doesn't seem to have released a manual with the new voice command app. So here's all the ones I've found personally and across the internet.
Note: Set your device's language to US English to unlock all the commands
"Note to self <a note>"
Will email a sound bite and text of your note
"Open webpage example.com"
Shows a screenshot of a website with an option to open it.
"Directions to <place name>"
Shows a map with an option to get directions via Google Maps
"Text <name> <message>"
Sends a text message to person in contact list
"Set alarm for 9:00am"
Sets an alarm for specified time
Shows stock details for a company
"Show pictures of <item>"
Shows pictures of something
Shows place closest by you
"What's the weather today/ tomorrow/ specific day"
Displays weather information for specified day
General information such as "How tall is Justin Bieber" or "How many cups in ml"