The Nerdy Book Club blog put out this fabulous list of audiobooks for "Middle Grade" audiences this weekend. Several have already been hits for my kids -- particularly the "Little House" books. I'd add Ramona books by Beverly Cleary, almost anything by Andrew Clements, The Wizard of Oz, and even the Winnie the Poo books, voiced by Stephen Fry and friends.
At my Family Camping event last week, Shauna K. also shared the following tip: For Jewish families, there's Wonderwords, a phone-in storytime hosted by the Chofetz Chaim Heritage Foundation. You can play it on speakerphone during long drives. The number is: 212 444 1119.