One need only look at Pinterest’s 100 million active monthly users to know that image bookmarking is really popular at the moment, and Google wants in on the action. Those of you who have a Google account will now be able to save images and organize them into collections in much the same way Pinterest users can, but it’s currently limited to mobile users in the United States. Although there’s currently no Google+ integration, there’s a good chance that the feature will be tied to Google+ Collections in the future.