Earlier today, Twitter announced that it has integrated Apple's Ping into users' home pages. Now, Twitter users can view each others' Ping activity, listen to song previews and link to/purchase music from iTunes directly from tweets posted to Twitter.com.
Here's how it works: First, log into your Ping account and click the new "Connect to Twitter" button. A window pops up requesting your Twitter credentials. You'll receive a confirmation and a list of Twitter contacts who have also enabled Ping sharing. Then you're done! The new Ping information will show up at Twitter.com for you.
Apple introduced PIng a few months ago, and has struggled a bit during its initial growth period.
