yes, yugioh.com is the official yugioh website it has 5ds stuff too.
Best place to watch any episodes of Yugioh, Yugioh GX, Yugioh 5D's, and Yugioh Zexal is at the website 4kidstv.com
Go to Yugioh-cards.com to check for updates when new tuornament on yugioh 5'ds be out.
yugioh zexal in Spring 2011
Series after: yugioh 5'ds is yugioh Zexal.
when yugioh 5ds did
you could try hulu, or animeshipppuden.com. or just google watch anime online and you will get a list of anime sites too watch them on. Try http://www.toonzaki.com/yugioh-5ds
No
No.
you should watch programms such as yugioh, yugioh gx and yugioh 5ds
so far they havent posted it in english
ebay
exodia