Yes
It depends on the use, and the impact it would have on the licensing value of the game.
You can simply upload a video to a video hosting site such as Youtube, or more specifically upload it to machinima or any other game specific video game video hoster.
Webcam, Camcorder, Or another recording device. there is no in game video recorder...
Send them your game if they approve your game they will upload it to their website.
You have to have an account at the game creators website and an active game character in the game. Then you can select an option on the main menu to upload the character.
im playing a video game playing is the verb
mobygames.com has HD video game cases.
scratch.mit.edu/ and sploder.com....
Video game consoles are machines made almost exclusively for playing video games.
It depends on what game you are playing.
Wings of Redemption upload game play videos of Call of Duty Black Ops 2. They also upload many other videos of other games. They also upload videos that review games.