For team coordination you can also use Slack. Slack mainly allows you to create a workspace which you can then share with different members of your team, with your workgroup, with your friends. It allows you to create different channels where you can store different ideas and just chat in general about different topics and different things. However the good thing about Slack is that it also allows for other features; it features some applets that are built into a slide just like Dropbox, Asana, Google Drive. It also allows you to make calls and video calls and manage documents, images and videos. The big difference between the free and standard versions is that with a standard version you can have unlimited search capabilities and limited apps and group calls with more people than want people. However if you just want to collaborate on the very standard basis the free version will be more than enough for you.