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Ben Chestnut, CEO of MailChimp, described in the last post how the freemium model has dramatically increased business for his company. Below, Ben describes his pricing model and the types of customers his company prefers. Curt-I reviewed your company’s pricing structure and think it’s really smart how you have tailored your pricing for each buyer persona, such as the customer with high volatility in the number of emails he’s going to send or the customer with a huge volume of subscribers

This and more important news from your Fast Company editors, with updates all day. Google Plus's Gundotra Toasts Jobs .

From online deal sites and gamification to digital marketing and online payments, these Internet companies are reaping all of the benefits with none of the brick and mortar overhead. Paul Hurley, CEO New York City No. 1 2010 Revenue: $77.7 million Three-Year Growth: 40,882% Founded in 2006 and based in New York City, ideeli has pioneered the idea of the flash deals site and is the Inc.

By 2015, $144 million will be spent annually on cybersecurity tools for electric vehicles. Hacker attacks on electric vehicles couldn't just spoof credit card numbers or power a car for free--they could also potentially take down the grid. Electric cars can go fast, have increasingly impressive battery lives, help drivers save money, and help wean economies off of oil.

Running a restaurant has never been easier, thanks to the iPad. De Santos is the first in New York to run its restaurant completely off Apple's tablets

The faster tech businesses boom, the faster scam artists see opportunities to exploit them. Two hacks targeting Facebook and credit card service Square offer further lessons in failure at the speed of light. The FBI has arrested the "Spam King" Sanford Wallace and charged him with 11 counts of fraud, intentional damage to a protected computer, and criminal content, The U.K.

What if you could conduct business on a second, more secure Internet? For some, the idea of a more secure Internet makes sense: all transactions would be safe from criminals and hackers who routinely break into corporate servers and deface websites. This second Internet would run alongside the main Internet but use an entirely different network of servers and IP addresses

Peer-to-peer lending has found its niche among small business owners in need of quick cash. Find out if its right for you, and learn some expert tips on appealing to lenders.

The payments space is evolving quickly, and lots of NFC-enabled schemes are brewing, but SparkBase has leaped ahead and is launching a wireless store loyalty card scheme that works using existing tech.

Creating a social network is so last week. Today, American Express is unveiling a social media platform

Some 40 percent of small businesses say money they're owed is trickling in, while the Freelancers Union says half its members struggled to get paid last year. Getting paid for invoices is slower going than it has been in years for small business, says a new survey by the National Federation of Independent Business . Manufacturers with less than $10 million in annual revenue received payments an average of 48 days after invoicing in 2011

A new app will help you diagnose and track skin conditions--from wrinkles to melanoma.

%excerpt% Continue reading here: 3 Mobile Cash Registers

The Secret Service recently spilled the beans on their anti-cybercrime investigations. Fake accounts on underground websites? Elaborate multinational credit card fraud investigations with Turkish law enforcement

Jack Dorsey's Square is on a ($100 million) tear this week, but the competition is heating up--and they have bigger plans for a wireless payment future that could arrive as soon as next year. Square just received a $100 million cash injection and is now valued at a cool $1 billion