exchange

You have Options in TISS and TUWEL to communicate with other students.
The advantage is, that you can contact all students of a particular course and sometimes the lecturer reads the messages.
The disadvantage is that the information gets lost after the term and some courses you have to join before you can get access. Furthermore you can get only information relating courses.

There are other community projects where you can contribute - this is the many disadvantage, students are not forced to register (in contrast to TISS).
But the Information is persistent over terms and you can discuss other topics too.

http://informatik-forum.at/
connect with other students and talk about studies and all other topics.

https://vowi.fsinf.at/
get and add information about courses and extra material