Paypal has been in business since 1998 and was acquired by eBay Inc. in 2002. Although it claims to not be a bank (to avoid being regulate as a financial institution) it effectively operates as one, handling other peoples money and then taking a small percentage for all services as its fee. There is some controversy over paypal's operations, and there have been truly some nightmarish stories coming out of paypal experiences, where peoples bank accounts have been frozen in their entirety during an investigation. You can get the full story from the gripe site
http://www.paypalsucks.com
Nonetheless paypal has become a standard on the web accepting payments. Many use paypal for years and dont have anything really bad happen to their account. paypal has done some annoying things, such as change the format of its purchase notifications more than eight times, without notifying system administrators or site owners before hand and this has caused some to cause their UF's transaction server to barf. Ultimately meaning having to go in and upgrade accounts by hand until the new code was in place on their ends.
dont forget that paypal skims a fee, usually a flat amount plusa percentagem for each trancsaction, Its's imperative thaat you figure this fee into your cost and profit calculations; you can five yourself quite a shock when yu think you should have $500 dollars in your paypal account and discover you only have $475.
Paypal now allows for credit card processing without forcing buyers to create paypal accounts. All they need to do is enter their card details and a purchase can be made. This is good news because it removes one more obstacle from the mantra of making it as easy as possible for people to give you money.
Generally paypal seems to work. It takes a little effort to set up an account and i recommend (with some reservations) that you do so. If you dont want to chance doing business with paypal you'll need to accept that you're cutting off a non significant avenue for revenue. There are alternatives to paypal:
moneybookers.com yowcow.com clickbank.com
Each has its own quirks.
by JD Frazier from his book (money for content and clicks for free.