I recommend you exchange other culture by internet. In that case,you need common language to understand each other.English is one of the good choice to use by the common language. We can use good tools from internet when you want to exchange other culture.
For example,there are Facebook,Twitter and other social media. I recommend "e-kaiwa.net" we offer.hahaha... I think you should enjoy studying English.
http://www.facebook.com/
http://twitter.com/
http://www.e-kaiwa.net/