Usually, project managers prefer the face-to-face communication method, as they have a better opportunity to explain the project status with charts and analysis and get instant feedback, which will help them alter project plans according to the inputs given by the stakeholders. In my office, we use the "Teams" application to speak to each other, especially when an impromptu meeting is needed.

Great questions @hodafattel! Communication is very important to making sure a project stays on track and also to allow cross collaboration between other groups and teams. At my previous job, we used Microsoft Teams to communicate with each other. Whether it just be messaging each other during a boring meeting or sending important documents to each other, I liked how user friendly Teams was. Another benefit for using Microsoft Teams was we were able to schedule meetings within the application itself. If we saw the the other person was online, we could easily start a video/voice call rather than having to send a link and then join a call like with Zoom and Webex. Like you had mentioned, my research group at NJIT also uses Slack to communicate with each other. It is very convenient since you can create channels for different teams within the group. Similar to Slack, I know some people also prefer using Discord.

I checked out "Slack" after reading about this post! I really like the program, I think its functionality is useful and interface is easy to understand and use. 

I am curious how it compares to Microsoft teams. I have heard of it but have not seen much use of it. MS Teams seems like another great tool for scheduling and communicating ideas and plans. Slack seems too simple in some cases, based on its features. I feel like Microsoft Teams allows for more intricate spread of ideas between individuals and groups, maybe if more than one team was involved in the projects progression (as if they were working on different aspects from different departments).

My research lab also uses Slack as communication and one disadvantage I find with it is that on the current plan, messages are deleted after a certain amount of days. It makes it much harder to go back to an old file or old message.During my undergraduate and graduate classes I’ve mostly used groupme, whatsapp and iMessage to communicate with group members. So far the one that has worked the best for me has been iMessage because it allows for easy communication with each person and on rare occasions we were able to enter a quick multi-facetime to speak to one another quickly and efficiently. One drawback this can have is that it can be difficult and/or unprofessional in a work environment. But overall  I believe that Slack has good potential as a professional form of communication but it would probably work more efficiently on a plan that allows for messages to be saved.