Tokyo Otaku Mode" is one of the most popular Facebook pages by the Japanese. They collected more than 5 million "Like!" in about 1 year.
Tokyo Otaku Mode is introduces various Japanese Otaku culture in English. Manga, Anime, Game, Figure, Cos-Play and Event...etc...Here is English articles of every Otaku culture. They are companies, but they were active until now only in Facebook page. However, they opened a Web site suddenly in this month.
They are developing a α version of new service now. However, it is unknown what kind of service it is. If you are interested in this, register an e-mail address. I already finished it.