I've added many new stock images to my space, free for non commercial use. Please feel free to download them and use them however you wish in your personal work. Let me know if you do use them though because its always good to see what people are doing. I've recently added some scientific images to my collection and have many more to add at a later date.
I'm always on the lookout for unusual objects and opportunities to shoot photos for my stocks. Be sure to check back every now and again if you like what you see. :D