Simplify the following text for a Grade 11 native English-speaking person.
Original: Kijiji ( kiË dÊ ' iË dÊ ' i ; , Swahili for village ) is a centralized network of online groups of people for posting local online classified advertisements .
Simplified: Kijiji ( kiË Ë dÊ ' iË dÊ ' iË ; , village ) ( aka ebayclassifieds.com ) is a centralized network of online urban communities for posting local online classified advertisements .