I was just going through my PayPal account and happened to click on a link on the left which said, “network with other PayPal merchants”. Out of curiosity, I just had to click it. When I clicked the link a I found a pretty valuable resource for anyone who is a PayPal merchant.
There is plenty of information there not only on PayPal, but also on marketing in general.
Here’s the link: http://www.onlinemerchantnetwork.com