For Adults:
NPR: Audience Picks: 100 Best Beach Books Ever
Nature: A break from the bench Summer reading recommendations
Navy Times: House Armed Services Committee chairman Ike Skelton's 2009 List of 50 Essential Books [Word doc] (a supplement to his 2003 Reading List [Word doc]). Recommended for military officers, noncommissioned and petty officers, and all Congressional members
TimesOnline: MP's picks for summer holiday reading
The Man Booker Prize 2009 Longlist
Seattle Public Library: Explore your Inner Captain: Great Reads about Nautical Pioneers
AIGA: Designed for Summer Reading
GOOP: Summer Reading Suggestions
The Daily Beast: Last-chance summer books
JTA: Summer reading and the Holocaust
Cheeky Fresh: Summer Reading List For Millennials
Male Rights Network: A Masculinist Reading List
Kenneth C. Davis: A Historian's Revolting July 4 Reading List
Children and Young Adults:
Seattle Public Library: More Summer Staff Favorites for Children: Historical Fiction
Bonus: Reliable resources for choosing book club books