Edmodo opens their front doors for the safe use of all your favorite sites! Use your favorite sites, safely within Edmodo! I posted about Edmodo over a year ago; you can read all about it by clicking here. Now, I’d like to announce that today Edmodo has opened their doors for third party sites to work within their platform. Now, you can have your favorites sites within one home site, Edmodo. Thanks to my friends at MasteryConnect for telling me of this exciting news! Erin Mother. Teacher. Keynote. Author Erin Klein is an award winning educator, national keynote speaker, author, and mother.