I want to add online store features to my website. I am interested to get Instant Payment Notification (IPN) of the purchases which buyers will make from my website.
Which company can be good to provide me this information.

http://www.perl-studio.com/php/paypal/

http://htmlfixit.com/paypal_ipn_script.php

http://www.stargeek.com/grok.php?p=payment+notification

http://www.hotscripts.com/Detailed/29977.html

To tell you more about a good E-Commerce features provider company. A company who provides Instant Payment Notification (IPN) to the merchants, of the payments received from the online buyers, is considered to be a good company. ikobo is one of those companies, who provide IPN information to their merchants. That is why ikobo has been rated as a five star company in amazon.com.

Shama
IMO,That Ikobo was rated as a five star company is not only because of its IPN service but also its cheap price, wide coverage and some other features. How can you answer why there are some other companies which provide IPN service have not been rated as five star company?

My own search revealed that stormpay.com and ikobo.com provide Instant Payment Notification to the merchants on receiving any new payment on merchants website.

The IPN of ikobo includes many useful information such as customer information, shipping information and payment information. I think you can store these information into your database and draw statistic from them. You can know which customer has a bad reputation or which item sell well through these information.

I recommend you Ikobo. You can not only receive IPN from Ikobo, but also receive email from Ikobo. I have written some scripts to store the IPN into my database, and I can draw statistic from these data. It is very useful.