This is a compilation of spots/clubs related to the Harry Potter universe (inspired by Temptasia's link list). If I've left any spots out or new ones are created, leave a comment and I'll add it to the list.
Characters:
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link
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Families:
link
link
link
link
link
Relationships:
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link
link
link
link
link
link
link (Draco & Hermione)
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link (Luna & Neville)
link
link
link (Harry/Riddle)
link
link
link
link
link (Snape/Granger)
link
link
link
link
Actor/Actress Groups/Couples:
link
link
link
link
link
Actors/Actresses:
link (Angelina Johnson)
link (Oliver Wood)
link (Bellatrix Lestrange)
link (Teen Voldemort, HBP)
link (Dean Thomas)
link (Young Voldemort, HBP)
link (Lord Voldemort)
link (Draco Malfoy)
link (Ron Weasley)
link (Viktor Krum)
link (Lucius Malfoy)
link (Cho Chang)
link (Luna Lovegood)
link (Narcissa Malfoy)
link (Seamus Finnegan)
link (Sirius Black)
link (Cedric Diggory)
link (The Weasley Twins)
link (Fleur Delacour)
link (Harry Potter)
link (Severus Snape)
link (Cormac McLaggen)
link (Tonks)
link (Remus Lupin)
link (Professor Trelawney)
link (Madam Hooch)
link (Hermione Granger)
link (Ginny Weasley)
Versus & Multi-Fandom Spots:
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Groups/Houses:
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Books
link
link
link
link
link
link
link
link
link
link
HP Fans:
link
link
link (role-playing)
link
link
link
link
link
link (creator of Potter Puppet Pals)
link
link (related to A Very Potter Musical)
Misc.
link
link
link
link
link
link
link
link
link
link (theme park)
link
link
link
link
link (composer)
link (the legend)
link
link
Characters:
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
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link
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link
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link
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link
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link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
Families:
link
link
link
link
link
Relationships:
link
link
link
link
link
link
link
link (Draco & Hermione)
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link (Luna & Neville)
link
link
link (Harry/Riddle)
link
link
link
link
link (Snape/Granger)
link
link
link
link
Actor/Actress Groups/Couples:
link
link
link
link
link
Actors/Actresses:
link (Angelina Johnson)
link (Oliver Wood)
link (Bellatrix Lestrange)
link (Teen Voldemort, HBP)
link (Dean Thomas)
link (Young Voldemort, HBP)
link (Lord Voldemort)
link (Draco Malfoy)
link (Ron Weasley)
link (Viktor Krum)
link (Lucius Malfoy)
link (Cho Chang)
link (Luna Lovegood)
link (Narcissa Malfoy)
link (Seamus Finnegan)
link (Sirius Black)
link (Cedric Diggory)
link (The Weasley Twins)
link (Fleur Delacour)
link (Harry Potter)
link (Severus Snape)
link (Cormac McLaggen)
link (Tonks)
link (Remus Lupin)
link (Professor Trelawney)
link (Madam Hooch)
link (Hermione Granger)
link (Ginny Weasley)
Versus & Multi-Fandom Spots:
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
Groups/Houses:
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
link
Books
link
link
link
link
link
link
link
link
link
link
HP Fans:
link
link
link (role-playing)
link
link
link
link
link
link (creator of Potter Puppet Pals)
link
link (related to A Very Potter Musical)
Misc.
link
link
link
link
link
link
link
link
link
link (theme park)
link
link
link
link
link (composer)
link (the legend)
link
link