A good place for cheap(ish) business help is a Business School at your local University (or college). Final Year students often want to carry out a project/placement in a business and Marketing will be one of the areas that they will be looking for. Sometimes all that is required is a contribution towards travel expenses and lunch allocation (if you actually have office premises for them to work from) otherwise they will just base themselves at the Uni with regular meetings organised with yourself. You may be asked to submit a short synopsis on the project that you would like a student to work on which is then circulated to the course students. If you have any takers, they usually submit their ideas and you interview the ones that interest you.