What type of organization are you interested in? Organizations come in all sizes and shapes, from Fortune 500 companies to not-for-profit organizations. What are you looking for? Issues to consider include size, ownership, corporate culture, etc.

What industry would be best for your needs? Even when you know exactly what you want to do, you can still be uncertain about the type of industry that best suits you. For example, if you are a natural-born salesperson, you really have the option of working in any industry, but pharmaceutical sales is quite different from selling insurance.

More questions to clarify your internship goals...