• 1.8% swipe fee plus $0.15 for each transaction for MasterCard, Visa and Discover purchases
• 3% plus $0.15 for American Express purchases
• Option of using the iPhone-attached swiper for credit card purchases (a free version available for use with your audio jack, another for $100 is built into the phone’s casing)
• Merchants who run at least one Groupon deal are eligible for the service

Square, another popular payment service, offers a 2.75%-per-swipe fee. Groupon’s 1.8% is a welcomed lower rate. Of course, those companies who handle large numbers of credit card transactions can opt to pay Square’s $275 flat monthly fee.
Paypal charges 2.7% for each transaction, but also offers merchants an option to ear 1% back on MasterCard purchases, bringing the overall resulting fee to 1.7%, slightly below Groupon’s offer.

Groupon’s VP and general manager for payments, Gene Alston, says the company does not intend to battle for Square’s market focus. Instead of aiming for companies that don’t have a means to process credit cards, Groupon is focusing on merchants who already have this access who might be seeking ways to get discounts. Alston explains, “What we found is they’re looking to make that [credit card processing] experience better.”

These changes were discussed in a July edition of Business Week that profiled the company. Groupon’s CEO, Andrew Mason, explained that this “operating system for local commerce” aims to place Groupon in the center of small business transactions. A tough competitor for the company may be Paypal, a former employer of Alston. PayPal’s overall lower fees don’t seem to intimidate Groupon. Alston says that merchants typically get their credit card accounts through a bank. These customers may not see PayPal’s offer as a true cut in fees, and they may experience saving more money taking advantage of Groupon’s offer.

Square, launched last May, was co-founded by Dorsey. It is a mobile payment company that helps retailers charge for goods using smartphones and tablet computers versus traditional methods.

Twitter is a social networking and microblogging service which allows its users to send and read messages called tweets. Dorsey will lead product development at the company.

Perhaps Dorsey tweeted it best himself, saying, per the same nytimes.com article: “Today I’m thrilled to get back to work at @Twitter leading product as Executive Chairman. And yes: leading @Square forevermore as CEO. #200%”.