Diigo is a free tool that helps aid internet research. In Diigo you can do many things from bookmark web pages and resources to highlight and stickynote important ideas. In Diigo you can collect a library of online resources for your projects. In addition, you can create and manage groups where the bookmarked information and sources are available to everyone within the group.
This tool is not visually exciting and is one of the more complicated tools to use, however, I believe that it would be very useful. It is very text heavy so I would reccommend coupling Diigo with a speak to read program to widen accessablility. This tool will aid in the researching and organizational skills of the students as well as allow for collaboration and sharing of ideas.
This video shows a more in-depth explaination of the tool.
