Harrypottermore
No, there is only one WikiAnswers site however there are many categories for the Harry Potter series on the WikiAnswers site. There is however, a Harry Potter a wikia.
Some good sites for Harry Potter news and entertainment are fansites like Mugglenet and Leaky Cauldron. The best site overall for Harry Potter is Pottermore, an official Harry Potter experience. It opens to all in October.
The Leaky Cauldron is a good site and IMDB have some as well
There is a contest where you upload a video to a site, about Harry Potter, so it was held everywhere.
SnitchSeeker is a web site devoted to fans of Harry Potter. The web site offers the latest news about all of the Harry Potter movies, the actors of the Harry Potter movies, and J. K. Rowling (the author of the Harry Potter books).
I am apart of a very awesome Harry Potter RP site called Hogwarts Online. I put a link in the related links. It is very enjoyable and the administrators are very friendly. I definitely recommend it to any Harry Potter Fan.
one can find about harry potter's life on wikipedia or potter lexicon or on rowlings official site.
There is a good site online called Halloween Costumes that has a pretty good selection of Harry Potter costumes online. That exact section can be found at the following address: http://www.halloweencostumes.com/harry-potter-costumes.html?gclid=COfQhIjNkKsCFUh_5godE3MZQw. I also recommend checking out eBay for second hand or new costumes, and maybe even any thrift stores in your area.
There are thousands of Harry Potter sites out there not all of them offical ones. So somewhere they will be a new HP chat site.
buy the book or get an audiobook
There is no such thing as a 'Harry Potter Store'. The only thing close to it are the ones at the Wizarding World of Harry Potter in Orlando and the shop on the Warner Brothers site.
go to any bookstore, or any online shopping site, and 100% chance you will find harry potter books for sale.