Translation of monóculo

So you have taken a German course in the Ghoete Institute. Well, I certainly learned something with you, and your German is already a lot better than last time. I think we really did it.
This messaging systems is very weird, especially if you are older than 30 or 40... I do not understand how it works, but it works... once we put a message out, over 2000 people see it within 1 day per page per message.
Perhaps we are could meet sometime in person, not just via the Internet. Of course, we should still write each other a lot. I will get back to you once I am back in Cologne, and then give you know.