Eiji Sakai introduces several popular Japanese websites including Commons Marker for social bookmarking and annotation, TweetMonkey for tweeting directly from web pages using Greasemonkey scripts, and Kanji Fandom for converting English words to Japanese characters. Other sites presented are Sekai Camera for augmented reality messages through location and GPS on iPhones, the anime Dennō Coil featuring augmented reality technologies, Lang-8 for language exchange, Hatena for communication services like blogs and social bookmarks, and Mixi as the largest social network in Japan similar to Facebook.