I was the one who contacted you on YouTube to confirm these were your videos.
STEM tokens in addition to your normal STEEM/SBD rewards.I featured your first post on STEMGeeks (https://stemgeeks.net) where you earn
STEMGeeks is a Steem community (also called Tribe) that features and rewards Science, Technology, Engineering, and Math content.
Your posts earn STEM tokens because you used one of our tags #technology.
You can redeem them when your posts payout after 7 days by going to https://steem-engine.com or on https://stemgeeks.net.
Ah thank you very much! I will definitely check out the site!