Warning: I boosted the microphone amp on this one. 🙂
A blog is a great place to accept web payments. Livejournal, blogger and wordpress allow bloggers to make their blog url their OpenID. In this screencast, we see that when a blogger on WordPress.com adds links, she can easily associate the type of link (through microformats). One microformat is rel-payment:
RelPayment is a microformat for making exchanges of support (be it financial or otherwise) possible. By adding rel=”payment” to a hyperlink a page indicates that the destination of that hyperlink provides a way to show or give support for the current page. For example to give financial support to the owner of the current page.
Although WordPress.com has the XFN microformats enabled, the rel-payment microformat is not enabled.