If you are a designer, architect or any professional in creative field who needs a place to show off your portfolios, may you can try this free hosted portfolio services :
Carbonmade is most advance service to host your portfolio. They have two type of membership : Whoo and Meh. Meh is FREE, but the limitation is : you just get 5 projects and 35 images to show.
This is a career and community site for creative professionals. They provides space to hosts individual creative portfolios, you will get an alert for jobs which meets your criteria. So in Coroflot you will get two advantages, a portfolio show off and job alerts.
This is another place to host your portfolio for free. But FigDig has a standards, so they will review it first before published. So prepare your best portfolio.
If you have a Flickr account, may be you can try this. Flickrfolio will turn your flickr photo set to your portfolio sites. It will automatically feeds from your photos and photosets on Flickr.
Elance is most famous freelance job marketplace on the net. You can put your portfolios in Elance for free, but if you want to be more competitive in freelance market you must pay for advance membership.
Odesk is one of famous freelance job marketplace on the net. Odesk also let you put your portfolios on your profile.