I need business grants for single mothers to start a business - where to start?

I have an idea and now I need a business grant for single mothers to start a business. Unfortunately I have bad credit and I have been refused business loans by the mainstream banks. I wont let this minor hiccup deter me. After doing a tonne of research I know that business grants for single mothers are available. There's so much to go through on the internet I thought I would try my luck here for some specific information. I want to know which site or organization I need to go to get a business grant for single mothers to start a business. Thanks in advance.