There is big money to be made selling digital products and downloads. For many freelancers and home business owners, these opportunities not only provide a nice passive, side income but a full-time living.
The earnings may not always come immediately as they do with an hourly gig, but you can buy or create many products in your downtime. Then market and flip those products over and over. Again and again, all over the world! This is an amazing niche, especially for new entrepreneurs to supplement your finances until you business takes on a life of its own.