I found some nice WiFi outlets on the market a while ago - produced by Kankun. 

Only disadvantage was that they come with US sockets - so EU adapter was needed. 

See more details here: http://www.anites.com/2015/01/hacking-kankun-smart-wifi-plug.html

Unit runs a simple stripped down linux. Here is the script which I installed on every unit after I was able to log in

https://github.com/kooiot/kankun

So now I am able to swich on-off them with simple http calls:

Example:

http://1.1.1.1/cgi-bin/relay.cgi?on

more later-----