Which sports are played in Sochi? explore the BBC website.
Sochi 2014 pictures if you prefer.
When did the Olympic Games begin? a history of the Olympic Games.
Do you like crosswords? check this Olympic one.
And some (easy) activities here.
And of course, the official website with the events schedule in case you want to follow any competition on tv.
Read and listen about the Winter Olympics Open in Sochi (from Voa learning English).