I just ran across this post by Greg Notess: SearchTeam: Collaborative Asynchronous Searching — looks like it has lots of possibilities, especially if you are working on a group research project — or any other type of collective activity.
Positives
- It accepts logins from other sites (don’t have to create a new account/login)
- Doesn’t require simultaneous online presence
- Has a Team Chat function
- Searches beyond webpages – databases of videos, images, books and more
- Free although at some point premium features may have a cost attached
- Provides suggested search terminology
Another tool in the buffet of resources!