Is there a way to access the website when my pc is shutdown?

Short answer: No. If the website is running on the laptop computer, and that computer is turned off, then there is no way of accessing it.

If you need/want to have your blog available 24/7, but you don't always have a computer running, then you will have to host it somewhere else. For instance, you can create a free, centrally hosted Wordpress blog at Wordpress.com.

Not if it's running on the laptop. You'd need to have it hosted on a system that's always on to have it available when your computer is switched off.

Think of it in terms of your phone - if you unplug it (or switch it off if it's a mobile) you can't make calls on it. It's the same with the computer - if you switch it off then you can't access services on it.

I think it might be posible... make a backup of your website at the time before you shutdown PC, import it to a free hosting service, redirect that url to dyndns url. Just my thoughts, haven't tried it. Any comment is weldom.

that's awesome, what a question . made my day happier .. other one is much funnier which was try to go through a closed door if you can :)

Weeee I laughed heartily at this:) My week is rescued ... Try to go through a closed door if you can:)