Instagrok is a great search engine that allows users to search for any topic and creae interactive maps with customizable facts, links, and videos.
2- Rutger's Riot
This is a wonderful animated tutorial that walks students through the process of doing research. It provides explanations and tips on how to select a topic, find sources, choosekeywords, identify citations, and evaluate sources.
Thinkbinder allows students to create study groups and learn collaboratively using a shared whiteboard. Students can share files, links and videos.
Bundlnet is a tool that you can use to assemble web links and share them with others. You can also add comments to the links and assign a unique URL to share with others.
ReadCube is a desktop application that you can use to organize your files and PDFs. It resembles Mendely in that it provides a library where you can save your research literature for offline access.