Mash subscribers received this email message: “Thank you for trying out our Mash Beta service. We hope you had fun with it. Please note that we will shut down Mash on September 29, 2008. As a result, your current profile on Mash will no longer be available.”

So ends Yahoo’s second attempt at social networking, following the former demise of Mixd. One of Mash’s features was that you could create a profile for one of your friends, then ask her/him to customize it. Sounds a little creepy to us. We will now share about a nanosecond of silence to commemorate the loss, and ask Yahoo to stick to what it does best, if they ever figure out what that is.