You now have the ability to edit your profiles! Just click on your character name on the top right hand corner of the blog (next to Logout and Owl Post). Then click on (Edit Profile) next to your name. If you don't already have a profile one will be automagically created for you and prepopulated with your current Hogwarts Live bio.

You can see a working example of a completely filled out bio here: http://hogwartslive.com/u/danilo

Right now you can add the following data to your profile:
Real Name/Alias
Avatar URL/Profile Image (if you have or want to use Gravatar just leave this blank)
Birthday
Blood Purity/Race
Wand (there are special woods and cores for people with 5,000+ points)
Current Location
Favorite Harry Potter Book
Favorite Harry Potter Character
About/Autobiography

What other kinds of information would you like to be able to add to your Hogwarts Live profiles?

Here are some ideas:
Quidditch Position
Favorite Harry Potter Spell
Favorite Harry Potter Shipping (in fanfiction shipping is short for "relationshipping" - i.e. Harry/Ginny, Harry/Hermione, etc.)
Favorite Quotes
Favorite Actors/Movies
Heroes/Heroines
Favorite Foods/Desert
Interests
Religion
Politics
Marital Status
Sexual Orientation
Education
Favorite Color
Ethnicity
Occupation
Buddy List (Friends)

UPDATE (some new ideas for profiles):
Likes
Dislikes
Social Networking Profiles: Twitter, Facebook, StumbleUpon, Digg, MySpace
Instant Messengers: Skype, YIM, AIM, MSN/Windows Live

Please share your ideas and let me know which of the ones above you like! I think it would be best to keep this as Harry Potter-themed as possible.

TODO: Your clean/short URLs work now just go to http://hogwartslive.com/u/danilo and replace "danilo" with your user/login name all lowercase. I'll add a section to the profile editor so you can just copy the link to share your profile with friends.