Summary:
http://www.sparknotes.com/lit/treasure/
http://www.bookrags.com/Robert_Louis_Stevenson
Information about the author:
http://www.robert-louis-stevenson.org/
Life and works:
http://robert-louis-stevenson.classic-literature.co.uk/
Book Reviews:
http://www.readingmatters.co.uk/book.php?id=60
http://ezinearticles.com/?Review-of-Treasure-Island-by-Robert-Louis-Stevenson&id=2483022
http://www.thepirateking.com/books/books_treasureisland_review.htm
http://www.allreaders.com/topics/info_2007.asp
