About the youtube thing, it seems on miiverse someone has managed to get youtube videos working on the browser.
basically in the address bar delete the watch?v= part and add /embed/ instead so the link is like http://www.youtube.com/embed/K4pJnV5OxPI instead of http://www.youtube.com/watch?v=K4pJnV5OxPI and then it works.
Obviously if the uploader has disabled embedding then it won't work but its something until google fixes this shit.
basically in the address bar delete the watch?v= part and add /embed/ instead so the link is like http://www.youtube.com/embed/K4pJnV5OxPI instead of http://www.youtube.com/watch?v=K4pJnV5OxPI and then it works.
Obviously if the uploader has disabled embedding then it won't work but its something until google fixes this shit.