Would like to suggest the addition of a menu planner tool so we can reference our books, create our shopping lists and plan all on one site. Thank you. :)
That is something we would like to add as part of our revamp of the shopping list when we design the mobile interface. You can of course use Bookmarks as Menus e.g. name a Bookmark "Dinner with in-laws" or "Thanksgiving 2012" then save the recipes you want to it. Then when you are putting together your shopping list, search by Bookmark and save each recipe to the shopping list.
I second this - would LOVE to see a menu planner or calendar tool added! I am using the bookmarks similar to how you suggested ("This Week" for example), it's a little cumbersome but works in the meantime. Just wanted to put my "vote" in favor! :)