Some of you may already be using this, but it's new to me. The website is http://interactivesites.weebly.com/ . The site is broken down into academic subjects, which are then broken down into topics, and then those topics have multiple site recommendations. Each site is pictured, which makes this a very user-friendly site!
I haven't seen that one before. Thanks! I tried a few parts and I think the kids will love it! I love how it's broken down so well into topics so I can jump right to the skill they need.