Making a return to the community, Hub is making a exciting return to the 3DS Screens. They have released an under construction site and still continue to progress. The site is very popular. Just about on the first day of making a official return, Hub got just about 100 Registered users that are active. If you guys didn't know Hub has returned, now's your chance to make it today and run over.
(Warning: It is hard to use this site on a DSi)

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Let the party begin! DSiKlub just released a 3DS formatted site. It's well organized, very fun, and more to my knowledge, that it's being updated. DSiKlub is probably the most popular and decent sites