I'm just starting to fill up My Library at Google Books, here: http://books.google.com/books?as_list=BDVm1b7gQ2eq-w_v2m7ViGhS4w825UF_U3LdOwSq5yF8BTPBICA
Feel free to share your own Google Book libraries (I'm quite curious). This feature, plus the addition of search to Google Reader, mark a major step forward at Google this week. Google continues to rock hard.