Post what you’ve harvested from your online researches on a tool like Pearltrees which is a curated archive of resources not just from the Internet but also from your own and others’ hard drives. For more substantive joint written work, such as research papers or applications for funding, use Dropbox or Google Drive to post the latest versions of documents which you and your collaborators are working on. Remember to date each posting. In this way there is no confusion as to where the most up-to-date version is.