Classic ads online

I am doing local marketing, Singapore
My niche: real estate, condo, commercial proerties.
I want to advertise on classic ad portals.
Plse advise me which are the good portals to advertise in.
Is craiglist & gumtree a good place to place my ads.

Appreciate your help.

I honestly am not sure how successful marketing on craigslist is in Singapore. Where I live it is very standard for real eastate companies to have their listings on craigslist and many other free classifieds.

I think a good strategy would be to search for condos and real estate in your area as if you are a real potential buyer would, take note of the first/top sites that come up in your searches, and then put your ads on those top sites.

You are absolutely right "mbreezy". @op,
Check this out:http://www.google.co.in/adplanner/static/top1000/
This is a Google Product which contains top 1000 advertising sites. I hope any of them would suits you.

Wish you all success!

You could join real estate communities in google plus or facebook. Then you could start promoting there.

You can also try on Google Adword.

Craigslist runs more traffic than most would believe. Do craigslist and all similar sites.