Hi Kostas
link to Toronto Kijiji:
http://toronto.kijiji.ca/
From the website: "Kijiji is Canada's most popular free, local classifieds site. Kijiji offers a convenient, fun, and easy way for people in the same city to buy, sell, trade and help each other out in areas such as goods, cars, services, housing and jobs. The word "kijiji" (pronounced like key-gee-gee) means "village" in Swahili. This name was chosen because it captures the essence of what we are creating - a site where people can connect with others in their community. "
If you go to the bottom of the page you will see links to the same thing for many other countries. Here is the link for Greece:
http://www.slando.gr/
Hope this helps. Enjoy your new HUW.
Cheers,
Brian