Spider, don't worry about Jedi. He seems to assume we ALL understand quantum physics at he age of 15.
Bilbo was given Sting (sword's name) in The Hobbit, and he passes it on to Frodo in Lord of the Rings.
About Lorien...
I haven't read the book yet, so this is speculation-
Maybe it is because the Elves didn't need to hide the ring anymore, so Lorien disappeared. It was the hiding place for those ring bearing elves, so if they no longer need to protect it, *poof* so long Lorien.