LogicLike - Improve logical thinking through engaging brain games
Mapped In Israel - An Interactive map of the Israeli startup community
Dualnback.works - Dual N-back is a specific brain training exercise, that's been shown by research - it might improve fluid intelligence.
Startups List - Collections of the best startups in different places
JobFlare - Brain games for job seekers
SocialGeek - Startup news for the Spanish-speaking world