A otaku is someone who has no life and spends there time watching anime and is probally addicted [like me :D] so a Vocaloid otoku is some one watches vocaloid to much and has no social life [I know tr;dl]
Otaku means an "obsessed" fan.
The ISBN of The Otaku Encyclopedia is 9784770031013.
The Otaku Encyclopedia was created in 2009.
Otaku USA was created in 2007.
Otaku Magazine was created in 2005.
If by otako you mean otaku, then no toradora is not an otaku.
The Otaku Encyclopedia has 248 pages.
Ambiant Otaku was created on 1994-03-28.
America's Greatest Otaku - 2011 Otaku Con Artist 1-4 was released on: USA: 17 March 2011
America's Greatest Otaku - 2011 Down Home Otaku 1-6 was released on: USA: 24 March 2011
Yes, Ai is a vocaloid. A vocaloid 3 to be exact.
America's Greatest Otaku - 2011 America's Greatest Otaku Revealed 1-8 was released on: USA: 21 April 2011