New information about HBP on JKR's site

[coderaspberry77]

No: HPFGUIDX 107792

Amey:

<snip> 

>I think I will be reading CoS again now to get all discoveries 
>Harry makes. 
> Any additions anybody????


Well, harry "discovers" a couple of other things, though I'm not 
sure how much this tells us, either:

1) The Hand of Glory in Borgin and Burkes - so what?
2) The term "mudblood" and the whole wizarding blood debate

Don't know if that adds much, but they are discoveries he makes.  I 
suppose you could say he "discovers" a bunch of other things, like 
skele-gro and the powerful magic of house-elves - who knows, really?