Embedding your YouTube videos just got alot weirder with an overly busy viewer. You, the embedder, just have to know enough HTML to add "&rel=0" to the tag that embeds the video.
embed src=" http://www.youtube.com/v/dGAL2wWctII", for example, should be changed to:
embed src=" http://www.youtube.com/v/dGAL2wWctII&rel=0"
It just doesn't get any user-friendlier than that!