Like Mr Hapton said its important to have both start-up cash and sustainability aka cash flow.
You may be able to raise money via here: http://teespring.com/
[Disclaimer I Am not associated with this company]
And there is not up front cash needed!
I Am Wishing You Well!
Peace +Much Love
You might want to consider focusing your social enterprise a little more. All three areas, are very / equally important, but also very different. I have some very good friends in all three areas, as well as in Baltimore, would be glad to connect you with their capital resources. Thank you for looking at how you can improve these three areas of Baltimore, very admirable. Dave Cochran, Seattle
There are so many business who have those goals in mind that fail, especially in urban poverty stricken areas, and even furthermore, in ebony urban communities. There is often little support for all things positive. The key to success in your endeavor is differentiation. So many people try to start companies with like minded goals, but often times, nothing comes of it, because the problems you would like to address don't generate income for the business. You may receive start up money but what about the monies to then sustain the business. I believe you first have to drum up interest on you own accord, with social media tools, street teaming etc... Once the attention of the community is captured, it may be easier to capture sustained funding because that is what you will need...
You may want to associate yourself with the ETC Baltimore (Emerging Technology Centers) they are a great connector for people, resources, as well as advisors. There are also lots of other incubators as well (Towson, Anne Arrundle etc) But as other people pointed out, make sure you have done your research and put together as much of a business plan as you can.
If you are at the start of your journey, there is a library at the ETC on 33rd street run by a guy named Paul Taylor: He is there to help people with startups. Or you can look for Neil Davis of the ETC as well.
The state has many funding vehicles like TEDCO WCLF, amongst others, that can help. But that is only once you have validated the concept, refined it, and worked with some of the people the ETC would make available to you.
You could try going directly to a site like Boefly and sign up to see if you get any interest. But be prepared firstly; business plan, officer information, etc. The typical needs of any business looking for money.
Depending on your business structure and goals there are a number of options for you to get your funding including: friends and family, loans, grants, business plan/pitch competitions, crowdfunding, angel investors, venture capitalists, etc.
What's right for you and your business depends so greatly on your current situation and future goals that we would need more information to be able to really answer your question. I do have a video that you can watch here: http://youtu.be/eeMqvqUDmDA that explains the pros and cons of the most common funding sources, though, if you plan to structure as a non-profit, that video won't be so useful.
I hope that helps some!