I StumbledUpon this blog and while searching through it I was immediately impressed and inspired. Media Militia is loaded with quality resources like Tutorials and Freebies. Download high grade textures, brushes, vectors, and images, even a few abstract renders. They encourage personal and commercial use. I felt like a kid in a candy store! The content is pretty straightforward, so the posts are easy to read through. I also found them extremely informative; within ten minutes I learned 3 new techniques (although an expert I am not).
Also, be inspired by their inspiration. Media Militia has a section dedicated to work they find stimulating. You can follow them on Twitter (if that’s your thing), subscribe to their feed (my thing) or even submit your own work. Media Militia gets 2 thumbs up. Check it out!