If you missed this awesome flat icon set distributed by Elegant Themes as freebie, here you have a chance again to to download. This is a great collection of 192 flat icon set.
The icons come in two variations: full color and single color and they are packaged in .ai, .eps, .pdf, and .png (64px and 128px). These icons are completely free and Open Source under the GPL, so feel free to use them in your personal as well as commercial projects.
As flat WordPress themes are in trend now and almost all the theme developer companies are coming up with crisp flat themes, these icons will a great help for them.