Bluesnap.com (Supports 180 Countries, 110 Payment Types, 60 Currencies & 29 Languages) - Dont know why no one has matched the features offered by this service ...

paywithatweet.com (pay with twitter)

chargebee.com

adyen.com

afex.com

securetrading.com

credorax.com

ccavenue.com

moneybookers.com

2checkout.com

chargebee.com

For India (stricter rules of double authentication:

payzippy.com

paytm.com

zaakpay.com

citruspay.com

payupaisa.com

indiapay.com

payu.in