Chalkboard is i-to-i's TEFL community.
It is currently still in testing phase which could mean you find the odd bug!
Q: What is i-to-i Chalkboard? A: It's the online community of TEFL specialists
I was trying to get my students to talk about their likes and dislikes so we played a game of volleyball(oon). They had to say a sentence and then hit the balloon to the other team. Every correct sentence got them 3 points. They started cheating and only passed the balloon to people in their own team. It got very competitive but at least it got them talking lol