What should I put in an online portfolio?

Hi, I have a physical portfolio but I've been thinking about creating a simple career portfolio online. I'm looking for some ideas. Many personal websites I've seen on this forum don't really showcase their work. I guess that could mean that it is simply not their career site.

I'm open to ideas and books or sites i can go to.

Thanks!

Put everything on it. I have just about everything on mine (though mine is far from complete and I am redoing it on a seperate domain name that has my name in it).

Thanks that was helpful. Nice site.

Some of your links don't work though, but i guess you are aware of that.