Hey there, I think most people have heard of the popular and user friendly exhange Coinbase and maybe even about their "earn program".
If not, it's basically educational videos about different cryptocurrencies.
After you have watched the video, they will ask you some rather simple questions about what you just learned.
And if you answer correctly you will get some free coin of that said currency.
It doesn't matter if you already have an account set up, or want to join.
The program is for everyone and you can either trade those coins or cash them out, it's all up to you.
They are not forcing you to leave them on their exchange.
So I feel it's a good program, you learn something, get something in return to promote these projects without any difficulties attached.
Well if you are interested in earining some XLM (Worth 10$), you can check it out here:
https://coinbase.com/earn/xlm/invite/1dhkxy53
To be transparent, I'll earn 10$ too if you complete it, you can do the same up to 4x times if you invite one of your friends too.
So thanks for reading my post, have a nice day!