My son has an interesting idea. Will his idea work? At the moment, it's impossible to say. Are there any other websites that offer a similar service? How successful are these other sites? How many customers will he need before he starts to make money? If the site is successful, will he need to employ other people? How many? How much will he pay his staff? And finally - is it legal to help students with their homework? When he has a business plan and when he has the answers to these questions, I will think again.