The Harry Potter Lexicon is an online encyclopedia of the Harry Potter series, created by librarian Steve Vander Ark in the Summer of 2000.
It contains detailed information for all six published Harry Potter books. The Lexicon lists characters, places, creatures, spells, potions and magical devices, as well as analyzing magical theory and other details of the series.
It has evolved greatly over the years, receiving its own domain in June 2003 and joining with The Floo Network, bringing together four immensely popular Harry Potter sites together into one giant reference area.
The Lexicon is credited as creating one of the first timelines of all events occurring in the Harry Potter universe. A similar timeline of events was adopted by Warner Bros. for inclusion with their Harry Potter film DVDs, and was accepted by author J. K. Rowling as conforming to her works. It is probably the most popular Harry Potter site, and has been mentioned many times over the years in news articles and the like.
The Lexicon has been and is still regularly translated in Spanish and French (the links are on the Lexicon main page).
JK Rowling awarded the Lexicon the "Fansite of the Month" on June 28th, 2004 - and commented: "The Harry Potter Lexicon is such a great site that I have been known to sneak into an internet café while out writing and check a fact rather than go into a bookshop and buy a copy of Harry Potter (which is embarrassing). A website for the dangerously obsessive; my natural home."
Source: Wikipedia
