Do you think childhood and high school friendships have a better chance of lasting a lifetime now with the existence of Facebook and other forms of social networking sites?

My husband and I have been telling our youngest son that his best friends will be those he meets in college and later in life, not those he went to high school with.

But has this changed now that we have Facebook and other social networking sites? I’m beginning to wonder if our advice is a little outdated.

Thoughts?