Social networking sites overtakes email use

Ever imagine of social networking sites overtakes email use?
When i read this article, i was like "Oh my God."
Email use to be one of de main ways for users use to connect and contact each other. But as we can see, social networking sites are taking more grants than email.
What kind of social networking sites? Lets take Facebook as an example.
There's tones of users using Facebook and it became a very well known social networking site.
There's a lot of usage in Facebook such as email, uploading photo, chat through Facebook, leaving comment etc. You as a user can see how wide it can be and how well known it could be. This made more and more users would like to spend more time on social networking sites than email. That is how social networking sites overtakes email use.

Since this issue occurred, why don't they improve their usage so that more users will spend more time on emails than social networking sites. They can expand email just like how social networking site does. If this happens, I bet arguments between users will occurred talking about both social networking sites and emails. Which will be the best? haha!!!
Nobody knows what will happen. But never try, never know what the results will be like.

What is your opinion regarding this issue? Does it affect much? Will improvements affect anything? Come and share it over here.

Reference: Pocket-lint, "Social networking sites overtakes email use", Retrieved 10 March 2009
http://www.pocket-lint.com/news/news.phtml/22822/23846/Social-networking-overtakes-email-use.phtml

-Rachel-