There is no other free way to make $5 per day without investment. As you have said, freelancing is the only way to make that amount or more, depending on the person's skill. But problem I have with this freelancing job is that I don't usually see work to do. But making money here with paid to forum is good.I don't think there is any website like bizdustry from where you can earn 5$ per day. But if you have skills then you can join freelancering sites and can earn more than 5$ based on your working.