Moneybookers and Alertpay are similar services. If you want to sell online then you can also look for 2checkout and authorize.net
Try Moneybookers and Liberty Reserve. I've used them for some times now for my small online business with no problem. But no matter what service payment you use, be careful of any phishing emails. I've got a lot of them nowadays since my business is getting better now.
I can't use PayPal in my country so I found AlertPay.com. It's similar to PayPal and reliable. Checks are coming always on time