Starting today Ping, iTunes' new social network for music, and Twitter are making it even easier for people to share music discoveries with their friends by putting Ping activity, song previews and links to purchase and download music from the iTunes Store right in their Tweets on Twitter.com.

On Ping you can link to your Twitter account to instantly find Ping users among the people you already follow on Twitter. Once you’ve linked the accounts, whenever you Post, Like, Review, or tell your friends why you purchased a song or album on Ping, this activity will also be tweeted to your Twitter followers -- complete with playable song previews and links to purchase and download music from iTunes.

Ping, introduced in iTunes 10, lets you post your thoughts and opinions, your favorite albums and songs, the music you’ve downloaded from iTunes, plus view concert listings and tell your friends which concerts you plan to attend. It lets you follow your favorite artists to see what they’re up to, check out photos and videos they’ve posted, see their tour dates and read comments about other artists and albums they’re listening to. You can also create a profile on iTunes to let your friends know who you’re following, what you’re listening to and which concerts you’re going to.

Ping’s Recent Activity feed shows you their posts about artists, albums, songs and concerts, plus a consolidated Top 10 list of the songs and albums your friends and the artists you follow are downloading from iTunes. In addition to using Ping on your desktop computer, you can take it with you on your iPhone or iPod touch.