Teacher Discussion Forums

With all the apps and softwares coming out, what do you think is the best online assessment software/app? Have you used one?

I use jacplus online application.
Maths and Science

This is an all new social learning network, where the studens get their own blog, or notebook if you like. Here students can do all their tasks and embed other rich media to their notes. You as a teacher can create a campus by finding your home town and chose create campus. You can divide your campus into faculites and create different courses for your students to subscribe to. Your students can join your campus and will get notifications whenever you post an assignment or a learning resorce.

This network is free, there are no ads on the pages and you and your students are free to organize all your learning content in which manner you like.
Try it the adress is gostudyit.com