In addition to the XFN Tools page, here are a few more more recent implementations:
The following implementations have been developed which either generate or parse XFN relationship links. If you have an XFN implementation, feel free to add it to the top of this list.
- LL4blojsom is the LinkList plugin for the blojsom blog engine. blojsom, written in Java, is the open source application behind the Tiger Weblog Server that is part of OS X server. The LL4blojsom plugin is used for creating XFN blogrolls.