Hi,
Interesting topic!
Some points to consider:
1. People want to be seen and read about, for they feel
that they are unique.
2. It's easier to make/break friends on the Internet.
3. Personal emotions are not involved, benefitting those
who are people-shy.
4. User-friendly web-tools and free platforms are
available.
5. It's fashionable to do web.
Thanks!
Cheers,
Wen Shih