Being self-sufficient doesn't mean you don't need a hand every now and then. We've compiled the best bootstrapping strategies of experts we've interviewed and companies we've written about recently, so you can learn from their successes.

1. Try swapping equity for expertise.

Credit markets are still tight, which means that resource-hungry business owners may need to rethink exactly what constitutes an investment. "This model in which you swap expertise for equity is a relatively recent development," says Robert Okabe, an angel investor and managing director of Chicago-based RPX Group. "But it is the next evolution." For instance, Darren Dahl reports that Tony Marrero thought he had found the perfect investors for his company, SoccerPro, but they actually only wanted to trade their online marketing services for equity in the retailer of soccer shoes and accessories. Find out how the deal worked

2. Test the market in small ways.

Looking to market something new but don't want to sink dollars into a big research project? Consider testing the minimum viable product - or microtesting. The idea is to develop something with the minimum amount of features or information needed to gauge the marketability of a product online. That might mean mocking up a website with potential features and seeing how many visitors click on the item. It might also involve buying pay-per-click ads to see how easy it is to gain potential customers. Or it might mean selling a few products on a site like eBay to see how well they perform before ordering in bulk from a wholesaler. What sets this approach apart from practices like using focus groups is that companies base product development decisions not just on what customers say they want but on how they vote with their wallets. "The economic downturn has made people hungry for new ideas like this," says Eric Ries, a serial entrepreneur who coined minimum viable product and writes about such ideas and what he calls the "lean start-up" on his blog, Startup Lessons Learned. Read about how microtesting worked for one company.

3. Employ creative bartering.

John Sarantakis, owner of People's Choice Family Fun Center, an arcade in Waukegan, Illinois, says his company acquires used DVDs for $1 apiece and is able to refurbish them and resell them for $10. Given the choice, he would rather sell the DVDs for cash, but as business slowed this summer, he turned to bartering more. Sarantakis sells items on IMS, an online barter and trade exchange site, and estimates the items cost him about 50 cents per dollar of list price. Therefore, he figures that items he buys with barter dollars come with an automatic 50 percent discount. "I bought 200 disposable cameras for $6.50 each in barter dollars, and we sell them for $6.99," he says. Because of that 50 percent discount, he figures his real cost for the cameras was $3.25 each, about $1 less than his distributor would have charged him. The hitch? Sometimes using barter credits requires creative thinking. Sarantakis used his barter dollars to rent a tent for a sale event, to take his employees horseback riding, and to rent a limousine. He also spent a large chunk of his barter dollars - $12,000 - on an electric three-wheeled car. Another $1,900 in barter dollars went to have the vehicle covered with his company's logo. Now the car functions as a rolling billboard for People's Choice, and Sarantakis never misses a chance to drive it through town, where curious crowds snap his photograph. "It's much more effective than an ad," he says. "I wish I could afford to hire someone to drive it all the time." Read more about People's Choice and barter and exchange websites.

4. Encourage developers to jump in - for free.

Etsy, the online retail shop conglomerate that specializes in handmade and vintage goods, launched a set of programming tools to makes it easier for outside developers to build new applications using Etsy's code in March. By April, hundreds of programmers had registered to use it, and some 50 were working on new applications. By May, a developer, Daniel Dickison, had created an iPhone application called Etsy Addict. Customers downloaded Etsy Addict 1,600 times in its first month. The 99-cent fee is shared between Dickison and Apple, but Etsy's then-CEO, Maria Thomas, said the company had no problem with developers reaping the rewards of their work. Find out how.

5. Manage your own public relations like a pro.

At start-ups, founders often wear many hats, including that of a PR manager. The good news is that reporters and bloggers are more likely to listen to a pitch from a company founder than a PR rep. "It means something when you tell somebody, 'I invented this product,'" says Leslie Haywood, founder of Charmed Life Products, a Charleston, South Carolina, maker of grilling accessories. "They want to hear your story." J.J. McCorvey and April Joyner compiled an assortment of tips on how to reach out to the press, including that you'll want to start small, by contacting local media outlets or blogs, make a press list, and know what the reporters you pitch write about. Read more.

6. Do your own market research.

"Keeping track of who your competitors are, what people are saying about them, and what they are saying themselves can help you differentiate your business and stay ahead of trends that could impact your business," says Michele Levy, an independent brand strategy consultant. You can do the research yourself by knowing the products or services your competitors sell, but there are also specialized tools you can tap along the way. Read more.

7. Get creative with new investment styles.

Kjerstin Erickson launched her first nonprofit as a junior in college. That organization, FORGE, helps African refugees rebuild their communities after surviving tribal warfare. She has been profiled on CNN, and the Clinton Global Initiative has recognized her work. Erickson is 26, and her future looks bright. But she's taken an unusual step. Through an online marketplace called the Thrust Fund, she and two other young entrepreneurs have offered up a percentage of their future lifetime earnings in exchange for upfront, undesignated venture funding. Erickson is willing to swap 6 percent of her future lifetime earnings for $600,000. The other two entrepreneurs, Saul Garlick and Jon Gosier, are each offering 3 percent of future earnings for $300,000. Despite the fact that her plans remain vague - she is writing a book and has ideas for nonprofit and commercial ventures - Erickson says the response from investors has been positive. She has lined up two investors and hopes to spread the deal out among a small group of backers. "My preference would be to have about 20 investors," she says. "That would be ideal in terms of a manageable number of relationships." Learn more.

8. Keep your website simple, and grow it organically.

If you start small, there's no harm in going cheap. Three years ago, Fred Mwangaguhunga launched, a blog focusing on urban gossip that is beating similar sites run by much larger companies. He says: "It cost $19.99 for the Yahoo account and about $7.99 for the domain name. Because I'm from a small business background, I operate this as a small business. We're lean in everything we do, and every expense is looked at to see how it will affect the bottom line. I want to maintain profitability and grow organically." Read more about how Mwangaguhunga got started blogging.

9. Need IT? Get it virtually.

In May, John Brandon wrote about three virtual tech-support services that could save your small business a costly hire. From iYogi (which offers support for one year for one computer for $149) to ($199 for unlimited support on one computer) to PlumChoice (which serves both Macs and PCs, with service starting at $10/month), there are options for different small budgets – and different levels of hold-time tolerance. Learn more about virtual IT services.

10. Get free apps for that.

Some of the best Apple applications for business are free, writes Marc Saltzman. The $499 price tag on one model of the iPad might max out your credit card if you buy a couple, but won't cause you to go running to investors. Check out WebEx for iPad, which is a conference call tool that allows for brainstorming sessions and presentation sharing. It lets data be shared in real-time – and makes meetings portable. There's also Square, a free app that allows a business to securely accept both cash and credit-card payments on the spot. The app will generate an e-mail or text message to confirm the transaction. Find additional cheap or free apps for business.

11. Finance your business with your 401(k).

Were you laid off over the past couple of years and sick of the job-hunting circus? Have the itch to start up your own business but know there's no chance in hell you're getting a bank loan? Tired of watching your retirement funds whipsaw with the stock market? If you answered "yes" to these questions – and there are surely a lot of you out there in this economy – you might already be considering tapping into your 401(k) to start a business. And thanks to provisions in the tax code, you can do so without penalty if you follow the right steps. But don't get too excited: This financing technique isn't for everyone. Here's what you need to know.

12. Get you name out by getting outside.

When your hobby – be it block-printing stationary, crafting goat-milk soaps, or designing up-cycled lighting fixtures – shows enough promise to justify renting a stall, selling at a local flea market could be worth a shot. Most street fairs and markets have a very low barrier to entry: You'll need transit, a table, a tent (for outdoor markets), a cash box and the means to cover a small booth rental fee (usually $25 to $50 for small communities and $75-$125 for urban fairs). If your community doesn't have a flea market, look for seasonal markets or even neighborhood street fairs. Even if you're already successfully hawking your wares online, making periodic appearances at craft fairs, art shows, and flea markets can give your business new insight into the market, your regional competition, and local consumers' evolving desires. Find out how.

13. Let your buyers and celebs create your buzz.

In fall 2000, Henri Bendel hosted a press breakfast to introduce 20 new suppliers. Maureen Kelly, who'd just started Tarte Cosmetics, found herself in a room buzzing with fashion magazine glitterati, many of whom subsequently wrote about Tarte. That exposure brought orders from national boutiques, including Bergdorf Goodman. After that, fashion magazines did Kelly's advertising for her. Her only promotional expense was using the website to identify agents for celebrities and mailing them samples. Oprah Winfrey was one target; in March 2001, Tarte turned up on the influential O List. Read more.

14. Get creative with branding and marketing.

In launching Madsoul, an urban streetwear label, in 2000, Marc D'Amelio raised guerrilla marketing to an art form. Take, for example, his sticker campaign. D'Amelio figured out that if he signed up for a United Parcel Service account, he was entitled to an unlimited supply of blank UPS labels. If he bought a Tektronix printer, he was entitled to free black ink. So he signed on with both companies and began printing stickers by the thousands and distributing them at concerts and art festivals around New York City, where Madsoul is based. "If you can't afford to do a $100,000 billboard, and you can't even afford to do a $20,000 print advertisement, you gotta figure out other ways," he says. Learn more about creative branding.