Tags???

I had not used Internet for a while when I came over here.
My in-law house does not have any computer nor internet.
so... I had to go to a library to check my website and e-mails.

While I was away from the net... Internet world was going so faster than before.
I first know "BLOG" and " SNS" was from a newspaper!!!
WHAT IS THE BLOG????!!!!!

I have many friends who mainly have a pet, because we got know each other through the websites.
BUT!!! whille I was away... I didn't know how many people use THE BLOG.
Building website is not easy even if using a software... so.... many people might not feel to build a website.

I have had some blog for learning new things.
I joined a couple SNS(Social Network Service).
NOW....... what?!!
TAGS???? RSS????


I think I must learn and study much hard to know and use them and new stuff in these days ^ ^;