- Министерство на образованието и науката http://www.minedu.government.bg/opencms/opencms
- https://www.download.bg/index.php?cls=program&mtd=default&id=710684
- https://interactivebg.com/software/tamashare-software-distancionno-obuchenie/
- https://vr.cct.bg/
- https://www.vedamo.com/bg/virtual-classroom/
- https://www.online-learning.bg/virtualna-klasna-staq
- Уча се https://ucha.se/
- https://sales.anubis-bulvest.com/teachers/selectUserType
- http://www.prosveta.bg/elektronni-varianti
- https://izkustva.bg/dgbooks.php
- www.bititechnika.com
- https://editor.nimero.com/
