Ubuntu One

Ubuntu one is the cloud service from ubuntu. You can upload your documents and data on the cloud and access it from anywhere. Now ubuntu one work on windows platform too.
A free registration gives you 5.0 GB of storage on cloud. Join the cloud here : https://one.ubuntu.com/referrals/referee/2366436/

Minecraft

Minecraft an awesome creative game. Although not so good in graphics, it is very nice game. Simply made in Java.

For more info check : www.minecraft.net