If you’re a fan of free resources, then you should certainly add brushlovers.com to your list. These guys have gathered thousands of free brushes in their galleries ranging from abstract, grunge, nature, fantasy, flowers, smoke, texture and I can continue like this for at least two more sentences.
So, you got the idea, variety is huge and more importantly is free and easy to download. In fact, the ads are so discreet that you can barely see them. Thus, BrushLovers has to be on your favourites list, unless you would prefer to buy almost the same photoshop brushes from somewhere else. Well, that would be a complete waste of time and money, don’t you think ? Nevertheless, enjoy, be inspired and download as many as you can and feel like!
Ultimate Grunge (click on the title)