Have you ever heard of livebinders.com? I just found out about it at school last Friday and it is SO.SO.COOL!! :)
There are a million resources on this site and you can download things and organize what you want into your binders! You can search the site and then create binders based on topics you want. Once you become comfortable, the kids could even start making their own binders...oh the possibilities!
It takes about two seconds to sign up and it's free! Go check it out today...you will be so glad! We are starting our weather unit so I looked up some weather resources. Another one of my favorites is some common core math resources that I found. You can make your binders private or share them with others. It's such a great resource!