A metalist generated from 130 different "best of" book lists from a good variety of sources. The books can be filtered by type (fiction or nonfiction), date (by decade), or nationality.
Another excellent source of great books.
An unranked list of the best novels published in the English language between 1923 and 2005. The list was compiled by Time magazine's own critics.
A list of the 100 most memorable books of the 20th century compiled by the French newspaper Le Monde.
A series of classical books, mostly novels, published by the Norwegian Book Club since 2002. It is based on a list of the hundred best books, as proposed by one hundred writers from fifty-four countries, compiled and organized in 2002 by the Book Club. This list endeavors to reflect world literature, with books from all countries, cultures, and time periods.
A survey on books carried out by the BBC in the UK in 2003, where over three-quarters of a million votes were received from the British public to find the nation's best-loved novel of all time.
A website where thought leaders (i.e., influential people) recommend books.
A well known collection of great books itself, the Modern Library also publishes its own lists of the 100 Best Novels and 100 Best Nonfiction books.