NIK Software is a powerful set of plugins for Photoshop and Lightroom. Google has decided to provide this set of plugins now at no cost. My personal favorites are Viveza and Color Efex Pro.
You can download the latest NIK Collection using these links.
MAC: dl.google.com/edgedl/photos/nikcollection-full-1.2.11.dmg
WIN: dl.google.com/edgedl/photos/nikcollection-full-1.2.11.exe
