Wonder is a new search tool that goes beyond just searching the internet. Wonder has built a research network of librarians and experienced researchers to help students search the web for high-quality sources, and to encourage curiosity in online learning.
You can sign in with Facebook, Twitter, or email and it's free to use.
When you search in Wonder, the results are contributed by librarians and other experts, filtering out a lot of the garbage that is online.
When you do a search, you get some results, a box to enter more information about what you are searching for, and a list of experts that you can choose to get results from.
This is a great resource for students and teachers, filtering out some of the chaff for search results and giving better results.
Below is an example search I did for "aircraft design":
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