Pottermore has been updated with background information, and J.K. Rowling’s thoughts, on Draco Malfoy. The update includes Draco’s relationship with his parents, his opinions of Harry, and even Rowling’s thoughts on Tom Felton:
“… Draco remains a person of dubious morality in the seven published books, and I have often had cause to remark on how unnerved I have been by the number of girls who fell for this particular fictional character (although I do not discount the appeal of Tom Felton, who plays Draco brilliantly in the films and, ironically, is about the nicest person you could meet).”
The rest of the information can be read below or on Pottermore.