Miraheze - Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains...
ReadingIQ - ReadingIQ is the most leading digital learning library app for kids ages 2 to 13.
Investopedia - Investopedia has a lot of information to share with business mind people.
Preschool - Preschool!
Editthis - A free wikifarm project allowing to keep private wiki and build it up through MediaWiki syntax.
Bini Super ABC - Bini Super ABC! Alphabet Games for Toddlers and Kids is a fun education app for those kids who want to learn letters and sounds of the whole alphabets.