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Metallica Makes Nice With Music Streaming, Comes to Spotify What a difference a few years make: Metallica announced on Thursday that it was releasing its entire catalog on Spotify . Reader Smoe noted just how much had changed since Sean Parker angered Metallica only slightly more than a decade ago.

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[More from Mashable : Community First: The Future of Online Commenting ]

It's the end of the year, but at Mashable we're looking forward. The top comments from our community this week encapsulated the sentiments common to the end of the year: reflection on the past and speculation about the future.

By now you've probably noticed we've rolled out the brand new look for the site to all of our readers. The new Mashable is social, mobile and visual. Last week at the Media Summit , we heard time and time again that media organizations need to adapt to a reader-first, mobile-first mindset. At Mashable , our new design extends to our community as well. We've overhauled our commenting system to put our readers, and your voices , first. What do you think of the new Mashable ? We welcome your feedback as we transition to our new design.

[More from Mashable: The Best Discussions on Mashable This Week ]

We're not the only ones who got a makeover this week: MySpace , the fallen giant of social networks, became available to a select number of users on Thursday. Mashable 's Matt Silverman took us on a tour of the new MySpace. Do you think the site can rise from the ashes?

In yet another sign of changing times, this week music-streaming service Spotify announced an unexpected partnership with Metallica . Although the metal band led the crusade against file sharing in 2000, it appears it is ready to make nice with Napster founder Sean Parker and music streaming as an industry. Spotify also announced new features to make sharing music a " truly social " experience.

Change and innovation rarely come without their fair share of ambiguity. A New York Post cover this week drew the attention and outrage of the nation. The cover photo showed a man on the subway tracks who was killed by an oncoming train, and both the newspaper and the photographer received criticism from the general public. Why did R. Umar Abbasi take a photo of Ki-Suck Han before his death instead of rushing to his aid? But Mashable 's Lance Ulanoff had a different question in an op-ed published this week: in the age of the "citizen journalist," what would you do in this situation? Our commenters weighed in on the situation, as you can see in above.

What was your favorite moment on Mashable this week? We encourage you to join the discussion by getting involved in Mashable Follow and brushing up on our best practices for commenting. Next week your voice could be featured in the top comments!

Image courtesy of Flickr , Sina Farhat

This story originally published on Mashable here .