Editing Otaku (section)

==Classification==
[[File:Railfantokyo.jpg|thumb|right|[[Railfan]]s taking photos of trains at an annual depot open-day event in Tokyo in August 2011]]
The [[Nomura Research Institute]] (NRI) has made two major studies into otaku, the first in 2004 and a revised study with a more specific definition in 2005.<ref name="nri2004"/><ref name="nri2005"/> The 2005 study defines twelve major fields of otaku interests. Of these groups:

* manga otaku were the largest group, with 350,000 individuals and an ¥83&nbsp;billion market scale.
* Idol otaku were the next largest group, with 280,000 individuals and ¥61&nbsp;billion.
* Travel otaku were third, with 250,000 individuals and ¥81&nbsp;billion.
* PC otaku were fourth, with 190,000 individuals and ¥36&nbsp;billion.
* Video game otaku were fifth, with 160,000 individuals and ¥21&nbsp;billion.
* Automobile otaku were sixth, with 140,000 individuals and ¥54&nbsp;billion.
* Anime otaku were seventh, with 110,000 individuals and ¥20&nbsp;billion.

The remaining five categories include [[mobile device]] otaku, with 70,000 individuals and ¥8&nbsp;billion; audio-visual equipment otaku, with 60,000 individuals and ¥12&nbsp;billion; camera otaku, with 50,000 individuals and ¥18&nbsp;billion; [[fashion]] otaku, with 40,000 individuals and ¥13&nbsp;billion; and [[Railfan|railway]] otaku, with 20,000 individuals and ¥4&nbsp;billion. These values were partially released with a much higher estimation in 2004, but this definition focused on [[consumerism]] and not the "unique psychological characteristics" of otaku used in the 2005 study.<ref name="nri2004" /><ref name="nri2005" />

The NRI's 2005 study also put forth five archetypes of otaku:

* The first is the family-oriented otaku, who has broad interests and is more mature than other otaku; their object of interest is secretive and they are "[[Coming out#Non-LGBT contexts|closet]] otaku".
* The second is the serious "leaving my own mark on the world" otaku, with interests in mechanical or business personality fields.
* The third type is the "media-sensitive multiple interest" otaku, whose diverse interests are shared with others.
* The fourth type is the "outgoing and assertive otaku", who gain recognition by promoting their hobby.
* The last is the "fan magazine-obsessed otaku", which is predominately female with a small group of males being the "[[Moe (slang)|''moe'']] type"; their secret hobby is focused on the production or interest in fan works.<ref name="nri2005" />

The Hamagin Research Institute found that {{Transliteration|ja|moe}}-related content was worth ¥88.8&nbsp;billion ($807&nbsp;million) in 2005, and one analyst estimated the market could be as much as ¥2&nbsp;trillion ($18&nbsp;billion).<ref name="money" /> Japan-based ''Tokyo Otaku Mode'', a place for news related to otaku, has been liked on [[Facebook]] almost 10&nbsp;million times.<ref name="Tokyo Otaku Mode has 10 million Facebook fans but now what" />

Other classifications of otaku interests include [[Vocaloid]], [[cosplay]], [[Model figure#Japanese figures|figures]], and [[professional wrestling]], as categorized by the Yano Research Institute, which reports and tracks market growth and trends in sectors heavily influenced by otaku consumerism. In 2012, it noted around 30% of growth in [[dating sim]] and [[Online game|online gaming]] otaku, while Vocaloid, cosplay, idols and [[Maid café|maid services]] grew by 10%, confirming its 2011 predictions.<ref name="Otaku Market in Japan: Key Research Findings 2012" /><ref name="Otaku Market in Japan: Key Research Findings 2011" />

=== Ōkina otomodachi ===
{{nihongo|''Ōkina otomodachi''|大きなお友達}} is a [[Japanese language|Japanese]] phrase that literally translates to "big friend" or "adult friend".<ref>When this phrase is actually pronounced, the colloquial form {{nihongo|''okkina otomodachi''|おっきなお友達}} is often used.  The phrase {{nihongo|''ōkii otomodachi''|大きいお友達}} is also used with the same meaning.</ref> Japanese otaku use it to describe themselves as adult fans of an [[anime]], a [[manga]], or a TV show that is originally [[Children's anime and manga|aimed at children]].<ref>[http://www.paradisearmy.com/PASOK10.HTM#341 Dōjin Lingo ({{lang|ja|同人用語の基礎知識|nocat=true}})] {{in lang|ja}}<!--Japanese--> Retrieved on August 4, 2006.</ref> A parent who watches such a show with their children is not considered an ''ōkina otomodachi'', nor is a parent who buys anime DVDs or manga volumes for their children; ''ōkina otomodachi'' are those who consume such content by themselves.