SixRevisions.com published new E-commerce freebie — 30 free ecommerce icons designed by GraphicsFuel. These icons come in 3 different sizes (128×128, 64×64, 48×48 pixels), along with a fully-editable and layered Photoshop PSD file for each icon.

InstantShift presents free social bookmarking icons, a set of high-quality social bookmarking icons named "SocialShift".

The set has icons of almost ever well-known social networks like Facebook, Twitter, StumbleUpon, Flickr and more.

Collection of Free 24x24 Ecommerce Icons in *.png by Sketchdock. The icons can also be used under Creative Commons Attribution 3.0 License.

Be prepared, when the scariest time in the year comes: Halloween. Our brand new free Halloween icon set includes 4 handcrafted icons: Watch out for the Geek Zombie! When he crosses the street with his weird glasses and his iPad you can only do one thing: run. Otherwise you will end up like him and we do not think it will be a pleasure. The Ninja Ghost is the kind of buddy who you don´t want to have in front of your door, even if you have enough candy. The Cheshire Cat looks very cute, but only on first sight. Behind the friendly eyes and smile hides a creature which is anything but nice. Last but not least we have our classic Halloween pumpkin, which looks very scary. Of course this little fellow must not be missing during Halloween. Of course all icons are designed to match with all our club icon sets.

Web Icon Set, a website which provides high quality icons, is giving away 10 Business Icon Sets ($25/set) to WebResourcesDepot readers.

They have various free sets for mobile, e-commerce or blogging and recently, their first premium product is released: Business Icon Set.