Google for search marketing, PayPal for online payment, DHL and UPS for delivery, Amazon for cloud computing, and Akami for web content distribution.
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Over the past 18 months the firm has bought nine companies including an online self-publishing site, a financial-data firm and one with a technology that newspapers can license for an online-payment system.
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Since the company launched the Alpha of Facebook Credits in May of 2009, the company has worked with a small number of developers in rolling out the institution of Credits as the method of payment for online games hosted by Facebook.
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Founded in 2007, Rixty is currently the leading cash-based payment system for online entertainment in the United States.
Users are already accustomed to its online payment system for buying goods, which gives an advantage to Amazon.
The O2 Wallet is a rival app that allows "money messages" to be sent, and automatically fills in address and payment details for online purchases.
The Bank of China Group, which already has a secure online payment system for Visa cards, is developing another system for BOC's Great Wall card, as well as Visa and Mastercard.
Zynga is almost six years old but Facebook is still its primary distribution, marketing, promotion and payment platform for online games like Farmville, Zynga Poker, Mafia Wars and Words with Friends.
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It also runs online shopping sites for retail consumers in China as well as an online payment service Alipay.
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Alibaba Group is the parent company behind Alibaba.com, an online marketplace for small businesses, Taobao, a shopping site for consumers, as well as Alipay, an online payment service.
AllThingsD managed to catch Levchin for an interview, in which he revealed that Affirm will issue credit to consumers and guarantee payment to merchants for all online transactions.
On the taxpayer side, receiving a bill online is more convenient and allows for prompt payment.
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Its arrival, along with several similar businesses, may spell trouble for banks, which have seen online bill-payment as their chance to secure a leading role in Internet commerce.
Uswitch calculated figures for the BBC showing the difference between the average standard plans (payment on receipt) and the average online price among suppliers in the UK for dual-fuel gas and electricity bills.
PayPal has rolled out some additional online and mobile payment options geared specifically for small businesses.
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Control of the payment infrastructure and individual payment choices allows for competitive differentiation among online marketplaces.
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As for the upside, small online merchants would welcome a global payment standard.
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Political pressure has already led credit-card firms and PayPal, an online payment system, to stop customers transferring cash for online wagers.
The writers now want a residual payment of 2.5% for re-use of material online and on mobile phones.
The open nature of the wallet allows a variety of payment instruments to be loaded, this truly is an online replacement for the physical wallet.
What a global online marketplace operator needs more is reputation management APIs and bitcoin payment modules for a broad range of e-commerce shopping cart platforms.
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Google already has an online payment mechanism called Checkout that, in theory, it could use to collect payments for social games on its platform.
Not only does this strategic move bring new unserved customers into the WordPress fold, it paves the way for the online publishing platform run by parent company Automattic not to be restricted by the choices of its payment partners.
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For the few tens of dollars for a modest online purchase, our data shows that it is possible to identify a portion of the underlying payment infrastructure and, within weeks, cause it to be terminated.
In the past, most internet transactions required a credit card or an online payment system like PayPal (NASDAQ: EBAY), creating an effective digital paper trail for people engaging in online transactions.
But if you are just looking for convenience and to avoid the hassle of finding a stamp, consider making your payment through your bank's online bill pay, or allow your charity to debit your bank account.
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