I´M AN OTAKU!!!!!!!!

Do you want to know what an otaku is???

Etymology
The word otaku is derived from an honorific Japanese term for another's house or family (お宅,　御宅 otaku) that is also used as an honorific second-person pronoun (roughly equivalent to vos/usted in Spanish). The modern slang form, which is distinguished from the older usage by being written only in hiragana (おたく) or katakana (オタク), appeared in the 1980s. It appears to have been coined by the humorist and essayist Akio Nakamori in his 1983 series An Investigation of Otaku (おたくの研究, Otaku no Kenkyū?), printed in the lolicon magazine Manga Burikko,[1] who observed that this form of address was unusually common among geeks and nerds. It was apparently a reference to someone who communicates with their equals using the distant and formal pronoun, and spends most of their time at home.[1]
The term entered general use in Japan around 1989, and may have been popularized by Nakamori's publication in that year of The Age of M (Mの時代, M no Jidai?). It applied the term to the (then) recently caught serial killer Tsutomu Miyazaki, who turned out to be a recluse obsessed with pornographic anime and manga and who lived out his rape fantasies on young girls, thus attaching a huge taboo to a formerly innocuous term.
Another potential etymology for the term comes from the May 2006 issue of EX Taishuu Magazine, which claims that use of the term originally started among the fanbase of the 1982–1983 TV series Super Dimension Fortress Macross as the main character of the show had a habit of addressing others as "otaku", a habit that fans started to emulate.
Yet another source for the term comes from the works of science fiction author Moto Arai. In his book Wrong About Japan, Peter Carey interviews the novelist, artist and Gundam chronicler Yuka Minakawa. She reveals that Arai used the word to refer to her readers, who adopted the term for themselves.
In Japan
In modern Japanese slang, an otaku refers to an overtly obsessive fan of any one particular theme, topic, or hobby. Common uses are anime otaku (one who sometimes enjoys many days of excessive anime watching with no rest) and manga otaku (a fan of Japanese graphic novels), pasokon otaku (personal computer geeks), gēmu otaku (playing video games), and otaku that are extreme fans of idols, heavily promoted singing girls. There are also tetsudō otaku (metrophiles) or gunji otaku (military geeks).
While these are the most common uses of otaku, the word can be applied to anything (music otaku, martial arts otaku, cooking otaku, etc).

The loan-words maniakku or mania (from English "maniac") are sometimes used in relation to specialist hobbies and interests. They can indicate someone with otaku leanings, (for example- Gundam Mania would describe a person who is very interested in the anime series Gundam). They can also describe the focus of such interests (a maniakku ge-mu would be a particularly underground or eccentric game appealing primarily to otaku). The nuance of maniakku in Japanese is softer and less likely to cause offence than otaku.
Amongst Japan's otaku themselves, some use the term to describe themselves and their friends semi-humorously, accepting their position as obsessive fans, and some even use the term proudly, attempting to reclaim it from its negative connotations. In general colloquial usage however, most Japanese would consider it undesirable to be described in a serious fashion as "otaku".
Although stereotypically male, there are also many female Otaku. A small alleyway of Tokyo's Higashi Ikebukuro district is known as "Otome Road" ("Maiden's road"). Otome Road's otome are a cross-section of Japanese womanhood, with ages ranging from teenage junior high school girls to housewives in their late 40s. A feature of the area is that there are so many bookstores devoted to comics and books filled with stories about homosexual men, in a genre called Boys' Love or BL. Dōjinshi, manga produced by amateur fans, dominate the shelves along Otome Road, with a significant chunk of the comics' stories about more famous anime that imitate, parody or develop on characters who are usually household names in Japan.
The Akihabara neighborhood of Tokyo is a popular gathering place for otaku.
An interesting, modern look into the otaku culture has surfaced with an allegedly true story surfacing on the famous internet bulletin board 2ch.net: "Train Man", a love story about a geek and a beautiful woman who meet on the train. The story has enjoyed a compilation in novel form, several comic book adaptions, a movie film released on June 2005 and a television series which aired on Fuji TV from June to September 2005. The drama has become another hot topic in Japan, and the novel, film and television series give a closer look into the otaku culture. In Japan its popularity and positive portayal of the main character has helped to reduce negative stereotypes about otaku, and increase the acceptability of some otaku hobbies. Perhaps encouraged by this reduction in stigma, a few famous Japanese celebrities, actors and models have come out about their otaku hobbies.
A subset of otaku are the Akiba-kei, men who spend a lot of time in Akihabara in Tokyo and who are mainly obsessive about anime, idols and games.
Sometimes the term is used to describe something pertaining to the subculture that surrounds anime, idols and games in Japan. This subculture places an emphasis on certain services (see fanservice) and has its own system for judgment of anime, dating simulations ("dating sim") and/or role-playing games and some manga (often dōjinshi) based upon the level of fanservice in the work. Another popular criterion—how ideal the female protagonist of the show is—is often characterized by a level of stylized cuteness and child-like behavior (see moé). In addition, this subculture places great emphasis on knowledge of individual key animators and directors and of minute details within works. The international subculture is influenced by the Japanese one, but differs in many areas often based upon region. (See also: Superflat, Hiroki Azuma.)
In Japan anime is not as widely accepted and mainstreamed as manga. Because of this the otaku subculture has much influence over the mainstream anime industry in Japan. The area where otaku have the most influence in manga tends to be with dōjinshi. Manga published in the United States are more influenced by their respective otaku subculture than they are in Japan. This is because most people who read manga have some ties to the subculture in the US, whereas in Japan manga reading is more widespread.