The Ping.FM module integrates in a number of ways with the Ping.FM Service.
- It can announce new posts to your site through ping.fm
- It can receive and process updates received from ping.fm via a custom URL
- It can update your ping.fm status through IRC
Install the module normally. From there, you can configure two levels of permissions: "administer ping.fm" and "post to ping.fm." To administer some configuration options, go to admin/settings/pingfm, where you can specify which node types should be announced, or specify an alternative developer key if you have your own (in nearly all cases, you'll just use the Drupal developer key that's the default). You can also specify the default format of your ping.
As a user, you now need to go to your account, and hit the "edit" tab. Here you'll see a new "ping.fm" section that will allow you to configure your personal API key and link it to your account. Once you've done that, you'll see the custom URL you can use if you wish to set up that functionality over at the ping.fm site.