A new arcade will be back soon, I promise.
YouTube tags now support either the full url or the numerical ID.
Google video tags are now available, but just to confuse things they only work with the full url.
There's now an mp3 player that enables you to embed music in your post, like this -
[mp3=200,20,0,center]http://jeff-nolan.com/ActionPatrol/Brains.mp3[/mp3]
Paste the location of the mp3 highlight it and hit the speaker button between the Google and YouTube ones.
Also I just found the Mix Tape list.
More soon....