This is one of my most favourite productivity tools. Every 100 words you write you get a new photo of cats.
If you need soundtracks and music for teaching videos or podcasts that might give you resources.
The Global OER Graduate Network (GO-GN) is a network of PhD candidates around the world whose research projects include a focus on open education (i.e. OER, OEP, MOOC). These doctoral researchers are at the core of the network; around them, over two hundred experts, supervisors, mentors and interested parties connect to form a community of practice.
This is a great way from anything city planning, architecture, history, geology and much more, create your own maps for your students.
Freeware it’s a browser based software where you can meet with students, colleagues, friends in an online space that is quite different from anything else around. You can text or voice chat with one another. And you can build the room ever which way you want.
There are reviews of the online meetup:
YouTube video explaining how it works