When you are logged in, go to "my bookshelf", click on the recipes tab, and then select the "online recipes" option on the right. Many cookbooks also post a selection of the recipes online, so you still have access to those recipes.
Also, you can search any of EYB indexed websites: go to library/online recipes. You can also add these recipes to "my bookshelf". (You still have to click on the link for the cooking website to get the recipe.)
Hopefully this will make EYB useful when you're traveling!