Vector images do not have fixed resolutions, they are flexible and scalable. In another words, it means they can be boost up to any dimension without loosing image quality. Here is a Collection of high quality free vectors in Photoshop for you to use on your future design projects.
While compiling this list, it’s always a possibility that I missed some other great resources. Feel free to share it with us. You may be interested in the following posts: Grid Based Plugins for WordPress, Commercial WordPress Themes Companies, Painted Wood Textures for Photoshop and Creative Engaging Error Pages.