I've seen several Scratchers posting their animations as videos on YouTube- is it possible for me to do the same? I'm clueless.
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You'd have to use certain screen recorder software... However, I know of none. A simple Google search got this result, which looks promising: http://camstudio.org/.
Anyways, you take the resulting video and upload it to YouTube.
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You can't make interactive games and upload them to YouTube; but you can use a screen recorder to record a story or animation you made. I recommend Screencast-o-matic.com or ScreenToaster.com . They're both online, though. Maybe online is better than download...
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