services like jobs.freelanceswitch(.)com, Elance, ODesk or even RentACoder, you can quickly start bidding and working on projects without having a portfolio. It’s important to just dive in and start getting experience wherever you can find it.
freelancer, odesk and elance are good to start..At starting level, do a project, a little charges, that is relevant your business..
But with out the portfolio ,how do they trust to give me the works? I think the employer will first searching for it .... Thanks for your advise .