LinkBun.ch is a site that allows users to paste several links in a box and it will bunch all those links into one link. Great for using on Twitter and other social media sites. You can also send the links via SMS. Another feature is your bunch of links can be copies to the clipboard so that you can access your list outside of the single URL provided. You can learn more about LinkBun.ch by visiting their help page. There is also a Firefox Extension that allows easy "bunching," that you can learn about through its blog.
LinkBun.ch could be an effective way to share various links with students for completing research. You could also share various links with teachers in the building over subject matter that will be taught in the curriculum.
I recently posted two other options for putting URL's together - bit.ly Bundles and BridgeURL