I am searching for a business that does not require physical presence in particular place. I do have a full time engineering job and would like to complement my income and job security with some revenue stream form business. Don’t look for anything big right now, but ideally would like the model to be scalable proportion to the number of hours I devote to it. Sales related and MLM models are not good fit for me. I have looked at eBay but have no idea how to approach it from sustainable revenue stream point of view. I appreciate you feedback/suggestions



