Answer:
Once they sailed the sea, now they surf the web
It is worldwide, but once only a spider could weave one
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
I went to the woods and got it, when i got it didn’t want it, looked for it, couldn’t find it so I took it home.
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?