This free social media icon pack includes 25 sleek, modern and very usable social media/networking icons that can be used and downloaded (free of charge) in your work. Commercial work use is permitted. Use it on blogs, portfolios, web application interfaces, and so forth. The icons come in 2 sizes: 32×32px and 16×16px. Twitter, Facebook, StumbleUpon, and Digg are but a few icons that are in this free social media icon pack.