Collaborators, group mates and friends that your worked on a project with are called Teammates on Portfolium. If you work on a project with someone, you can tag them in your entry. By doing this, you can show off who you worked with and your entry will show up in their Portfolium.
To tag a teammate in your entry, they must first be a member of Portfolium. If you are part of a partnered school, all of your classmates will have accounts and therefore, you can tag them in your entries.
In the entry wizard, add the names of your teammates in the second step in the Tagged Teammates section.
When you add teammates to an entry, they will show up on the Entry Detail page near the bottom.