WordPress Colorbox plugin enables lightbox functionality on your WordPress website using Colorbox. It allows you to pop up an image, YouTube video, Vimeo video, external page or custom inline content beautifully.
WordPress
Easy Media WordPress Download Plugin
Easy Media Download is a WordPress file download plugin which allows you to offer free digital downloads to your WordPress site visitors. You can easily create colorful download buttons for different types of media files such as photos, software, videos, documents, e-books, songs, graphics etc. This WordPress download manager plugin lets you create a download button for anything that is hosted on your server or hosted publicly on a remote web server.