I just today found this StartUpNation board, but I'd like to offer some assistance.
You can bootstrap your business without giving away equity to investors or getting into a bank loan that doesn't let you make payroll with your line of credit.
You can factor your Accounts Receivable ("A/R"). Companies factor when they sell their A/R for a slight discount, based on the good credit of your clients, the Client Debtor. A factoring company would give you ~80% cash up front, collect your invoice for you when it's due, then wire you the remainder less the factoring fee.
Be wary, though, of factoring companies who (1) charge large application fees; (2) penalize you for not selling the invoice to them on Day 1; (3) charge you fees if you need to change what invoices you're factoring; (4) charge you to get out of the contract. Finally, a good factoring company should not try to prevent you from breaking your relationship with them if you find better funding elsewhere.
I'm a broker (sales agent) for American Prudential Capital, an alternative funding (factoring) company that understands we're just one funding option for a season in the life of your business, here when you need us. There's never an application fee; you can factor as much or as little of any invoice as you like; the only fee is the factoring fee itself; and we're here when you need us, and happy to refer you to more traditional funding options when you're ready & able to take advantage of them. (We have lots of community bank partners; we "greenhouse" their customers for them.)
You are (and so is anyone reading this who needs our help) welcome to contact me at any time at any of the methods below. I'll also review your profile here and try to contact you through other methods.
Martin Murff | American Prudential Capital | firstname.lastname@example.org (or email@example.com) | (281) 668-7334 Google Voice account | twitter.com/fundingb2b