By adding the "international" option, or by choosing the Globetrotter or La Star package, which include the international component, your listing will be published on 104 real estate portals in more than 60 countries and reach nearly 153 million people.
Here is an overview of the most popular portals:

This is an effective way to reach a pool of potential renters who are actively looking for an apartment in your area. Your ideal candidate could be an employee or a student from abroad looking to move to your city.
Here is the list of countries where your listings will be published:
Argentina
GoPlaceit.com
Australia
Properstar.com.au
RealEstate.com.au
Austria
Properstar.at
Willhaben.at
Belgium
Properstar.be
Bulgaria
Imot.bg
Cambodia
Dotproperty-kh.com
Canada
Properstar.ca
Chile
GoPlaceIt.com
China
Anjuke.com
Fang.com
Sodichan.com
Colombia
GoPlaceit.com
Czech Republic
Properstar.cz
Denmark
Properstar.dk
Estonia
City24.ee
France
Acheter-Louer.fr
CoteLittoral.fr
Explorimmo.com
LaProvence-Immo.com
Properstar.fr
Seloger.com
SurfacePrivee.com
French Polynesia
Immopf.com
Germany
Properstar.de
Global
Arkadia.com
EdenWay.co.uk
Homeglobally.com
Mitula.com
Trovit.com
Greece
Properstar.gr
Spitogatos.gr
Tospitimou.gr
XE.gr
Hong Kong
Dotproperty.hk
Properstar.hk
Squarefoot.com.hk
India
99acres.com
Housing.com
Properstar.in
Proptiger.com
Indonesia
Dotproperty.id
Rumah123.com
Italy
Immobiliare.it
Properstar.it
Japan
Properstar.jp
Laos
Dotproperty.la
Latvia
City24.lv
Liechtenstein
Properstar.li
Luxembourg
Properstar.lu
Macau
Go853.com
Malaysia
Dotproperty.com.my
iProperty.com.my
Properstar.my
Mauritius
Properstar.mu
Mexico
GoPlaceIt.com
Properstar.mx
Morocco
Mubawab.ma
Selektimmo.com
Myanmar (Burma)
Dotproperty.com.mm
Netherlands
Properstar.nl
New Caledonia
Immonc.com
New Zealand
Properstar.co.nz
Papua New Guinea
Hausples.com.pg
Peru
GoPlaceIt.com
Philippines
Dotproperty.com.ph
Properstar.ph
Poland
Domy.pl
Morizon.pl
Oferty.net
Properstar.pl
Portugal
Kamicasa.pt
Properstar.pt
Qatar
Mubawab.com.qa
Properstar.qa
Romania
Properstar.ro
Romanian.realestate
Storia.ro
Russia
Properstar.ru
Senegal
SenegalCity.com
Serbia
Imovina.net
Singapore
Dotproperty.com.sg
iProperty.com.sg
Properstar.sg
Slovakia
Reality.sk
South Africa
Persquare.co.za
Properstar.co.za
Spain
Kamicasa.com
Properstar.es
Sweden
Properstar.se
Switzerland
Immostreet.ch
Properstar.ch
Thailand
Dotproperty.co.th
Thailand-Property.com
Tunisia
Sokna.tn
United Arab Emirates
Properstar.ae
United Kingdom
Properstar.co.uk
TheHouseShop.com
United States
Properstar.com
Realtor.com
Uruguay
GoPlaceIt.com
Venezuela
GoPlaceIt.com
Vietnam
Dotproperty.com.vn