I would like to install a plugin that displays a pinterest button when my readers hover over my images. Please advise. If I am not permitted to install plugins on my wordpress.com blog, how can I add the pinterest hover button to my images?
We don’t allow plugins on WordPress.com for security reasons. Plugins are a feature only available for self-hosted blogs provided through WordPress.org. You can find out more about this topic here: http://support.wordpress.com/plugins/
However, we do have several built-in features that were inspired by many popular plugins. You might find what you want by searching for it at http://en.support.wordpress.com/