Pinterest added a bunch of new categories to its service. By popular demand, the following categories have been added as pinboard descriptions: Quotes, Tattoos and Weddings.

"All our old categories have also been improved so you should see less miscategorized pins as you browse. We'll always be adjusting our technologies to make them more accurate, but we really appreciate the feedback we received to get us to this point," said Pinterest in a blog post.

"Lastly, we tweaked a few category names to better showcase the interests and communities we've seen grow on Pinterest. For example, 'Pets is now 'Animals,' and 'Prints & Posters' is freshly minted as 'Illustrations & Posters,'" the company added.

Pinterest is hoping to better showcase different intrests and build stronger communities around those subjects. Changes to the social networking service are being rolled out over the next week.

Firebelly reported in March that the most popular category on Pinterest was by far "Home." Following closely behind was "Style/Fashion" and "Humor." It's interesting to note that Pinterest has tampered none of these categories with. Instead, the service appears to be strengthening pinning rates for other categories.