well,if you started with no budget,so you are on profit, keep working hard and your earnings will increase soon,good luck
I suggest you to try flipping sites this is one of the best money makers . It is not easy but PROFITABLE .
I flip websites, I just don't do it often I've flipped 3 sites so far and 2 of them as made me over $100 each.
Good job on the sites if you need an arcade script to start another site in your network, send me a pm and I'll show you my automated arcade script.
Sorry I will never make one of those sites for 2 reasons. 1) Too many out there on the net already. 2) One of my friends have one that he has been working on for months. That site will have visitors addicted to it and no other aracde site can compete with once its fully done.