Hello! I use a website for my portfolio http://thirdchildstory.blogspot.com
I formatted it after googling other storyartists who had landed the same jobs and internships at the studios I applied to.
Put 5-10 examples of your BEST stuff in your portfolio. 5 very strong examples are better than 5 very strong+5 mediocre. As you make more work, update your portfolio!
Your website can be a blogspot, a tumblr, even a deviantart but here’s the kicker: It must be SPECIFIC for the position you are applying for. If you do concept art and animation, make one site for your animation and one for your concept. I like blogspot because I can make specific tabs for my story, concept, and resume stuff.
If you are doing animation, lighting, or other CG FX, compile your best work in a single video, a demo reel. Keep it short, 1-2 minutes, and unless you’re doing animation with dialogue leave out music and sound effects. (most recruiters turn off the sound when they’re going through reel after reel after reel)
If you are meeting someone in person to interview, bring either a printed version of your portfolio or a tablet to view the website on. (I’d go with printed, cuz paper doesn’t lose battery)