Google Books is one of the many components of the ever expanding Google universe. This site offers a plethora of sources, including full views of books that are in the public domain. This is perfect for scholars of the 19th Century because many books are available in full view, scanned from the original copies of books. Many of these books are now unavailble in many libraries and bookstores, because they are often out of print. Therefore, many crucially important sources for historiography and new scholarly research are available for modern researchers. Such sources range from Sarah Bradford’s 1897 biography of Harriet Tubman, Harriet: The Moses of Her People, to Abraham Lincoln: The True Story of a Great Life, by Lincoln’s old law parter, William Herndon, published in 1900.
Clearly, Google Books sees a prominent position in the future of history.