The internet social media sharing site expands its content attribution tools for five additional websites. In a recent announcement, Pinterest declared that it will now provide a program that links to the source of posted content for sites that are Etsy, 500px, Kickstarter, Slideshare, and SoundCloud.

Internet social corkboard Pinterest has successfully grown in recent years as a favorite social media sharing site that allows its users to “pin” the “things they love”, that may include videos and photos. While promoting photos & videos on interest-specific boards, Pinterest valuation has reached to $1.5 billion. Users respond to the “pin” they like in many ways like, they can like, comment or repin it as one of their own favorites. It would be interesting to note that Pinterest is has got over 4 million unique visitors daily for the last few months, almost doubling the user base quite phenomenally.

This step of including the source of posted content for the pins shared via these 5 sites is give credit to these sites for being the source site. In May 2012, the company already included Flickr, YouTube, Behance, and Vimeo in the above list. As a token for appreciating this recent provisioning from Pinterest, SoundCloud has announced that it is allowing its music to be pinned at Pinterest.

Earlier, Pinterest was not allowing the source of the content to be shown on shares at its interest specific boards. This made sites like Flickr to disallow its content to be pinned at Pinterest. With this act of including attribution and direct links to content source, Pinterest has tried to give the credit where it stands due for the source sites. In future it is obvious that Pinterest may broaden this content attribution to more sites that are pinned at this site quite regularly. That would be a fair thing to do as far as social sharing policies with reference to copyright claims are concerned.