I know many people who setup their own blog as an online portfolio. With WordPress you can find a bunch of free (and paid) themes to use that work well too. Honestly, compared to years ago, setting up a website now is pretty easy.
A good thing to do is to sign up for a free blog or website and then post your portfolio and a resume or video resume. Then you link clients to the video to show them you know what your doing, you can post links to websites, screenshots, and samples of your writing. Check out the freelancing links in the types of wah jobs menu on my website for places to find clients, also post on craigslist. I actually found the company who designed my website on craigslist, best investment I’ve ever made, I love wahtips.com lol