I would like to know all the POPULAR CLASSIFIED AD SITES in Nigeria.
I already know of OLX, JIJI and EFRITIN.
I tried to do a personal search of my own, but the other sites I discovered look like abandoned projects that don’t get traffic. One was actually spammed with A LOT with one advert for sugar mummies. 
So I want to find any other useful classified ads site.
You could also try www.mobofree.com
Edit: It appears Kaymu doesn’t operate in Nigeria anymore. I just discovered http://kaymu.com.ng redirects to market.jumia.com.ng. Interesting. I wasn’t aware Kaymu Nigeria was a Rocket Internet company.
Thanks… I checked them out… seems ok
Kaymu.com has always been a Rocket Internet company. Last month, they merged all of them under the the Jumia brand.
Kaymu became Jumia Market
Jovago became Jumia Travel
Camudi became Jumia Car
Larmudi became Jumia House
Vendito became Jumia deals
Hello food became Jumia food.
This applies only to Nigeria though
A friend of mine compiled a list sometime ago… some may no longer be active, but should be worth going through,
Wippypick.Com
KAtabata.com
Nairaoffer.Com
Nairalist.Com
Olx.Com.Ng
Needshub.Com
Ojabuy.Com
Mobofree.Com/nigeria
Jiji.Ng
Nairaoutlet.Com
Locanto.Com.Ng
Africavenue.com
Bnshub.com
Sellandgo.com.ng
Lamudi.com
Lagoslist.com
Checki.com.ng
Clicads.com.ng
Roborebe.com
Privateproperty.com
Halanow.com
Dealfish.com.ng
Google.com.ng/local/trader
Adsafrica.com
Nigeriaads.com
123nigeria.com
Oxl.com.ng
Mammymarket.com.ng
Adbushi.com
Just1k.ng
Junkmail.com.ng
Koko.com.ng
Kasuwa.com
Efritin.com
Chrisvicmall.com
Nigeriada.com
Rack.com.ng
Adeex.com.ng
Second.com.ng
Tradestable.com.ng
Jumia.com
All the best 
Cheapy.com.ng - Started this year.
Kaymu is not a classified site.
Kaymu(now Jumia Market) is a marketplace and has always been.
Kaymu now rebrands as Jumia Market in the whole of Africa.
I currently sell on http://www.adbushi.com but I will also post my products on other notable ones, as observed from the discussion. Thanks for the update on the list.
surprised to see my work shown here katabata.com…but it’s not online anymore the owners relocated
Thanks for the Listing SellandGO.com.ng is still very active and kicking