Padlet

Padlet

Padlet is basically a virtual corkboard where students can post their thoughts and feedback on any topic! It is easy to use on just about any device. Students can be given the option to reply to one another's posts to foster asynchronous collaboration!

Cost: you can create 3 padlets for free, but if you want to have more than that going at once or want a few advanced features, it will cost @ $12 a month