Creating Newsletters / Marketing Content

Free Vectors available at Freepik.com

Gimp can in some cases open EPS but the result will be rasteurised (pixeled). How to work with vector icons in Gimp: http://medialoot.com/blog/vector-icons-gimp-tutorial/

For other file types e.g. AI, EPS open with Inkscape.org

Free fonts available at fontsquirrel.com