Hogwarts Extreme is a fantastic site which allows you to explore many amazing aspects of the Harry Potter universe! It also incorporates a vast array of fan-fic, hobbies, and other franchises. There are professionals that give their time freely to help you learn and succeed. Professional authors, graphic artists, coders, musicians, and more. It's truly amazing the things I've learned since Joining hex!
I've been an active member of this site for nearly five years now. I can't say enough good things about it! It is such a great community! I've seem some negative things that have been said and I have to say I disagree. I guess it's about what you want out of your online experience. Do you want a supportive, safe community that allows you to meet wonderful people from all over the world, explore your interests, develop skills you can use in the real world, and is a ton of fun? Then this is the site for you! Do you want to troll sites, incite conflict, and worry more about inflating your online presence than becoming part of something bigger? Then you might want to choose some place which fosters those things.