Back in August, Pinterest rolled out YouTube support to allow users to pin and share videos from the site on the pinboard-based social network. Still, despite that addition, the focus of Pinterest (and reason for its growth) has remained pretty consistently rooted in photos.

However, as the site continues to grow in popularity, the company probably realized that it will have to broaden its horizons to hold the interest of new and old users, alike. Thus, Pinterest announced integration with Vimeo, which, like its YouTube deal, will allow users to pin Vimeo videos on the site.

Some are speculating that this move is just what Pinterest needs to expand its content reach, since Vimeo’s fanbase tends to be more art and design focused than YouTube’s things-on-cats loving crowd. This means these younger, hipper users may be more interested in sharing viral content on the site, so this new deal could help spur video usage on the social network. Or that's the theory, at least.

If nothing else, it’s clear that Pinterest is interested in evolving beyond its current format.