Crehana - Crehana is an on-demand learning platform.
LogicLike - Improve logical thinking through engaging brain games
Eduonix - An e-Library to Learn, Grow and Succeed.
Dualnback.works - Dual N-back is a specific brain training exercise, that's been shown by research - it might improve fluid intelligence.
Edoome - Edoome offers an online community enabling teachers and students to communicate and collaborate.
JobFlare - Brain games for job seekers