If you want to laugh, just play this phone tab by brooke and jubal FM radio 😉
You can visualize each step and iteration of algorithms for sorting, searching, etc. A very nice dynamic tool, just give it a try.
Watch my video for more explaination
This is a free online white boarding tool which could help you explain concepts quite easily.
Check out the demo. It can do a lot. If you are fed up with black and white console and wants some colors in life. Try mobaxterm
This site is an amazing Virtual reality demonstration to try on different sun glasses.
It is fun to work on it. Looks like a real white board drawing.
Here is the treasure of IT books in PDF format. You can search by title, author, publisher and download your eBook for free 😉 Try it out.