Any kind of gifs you might need from the old net are usually found here. There is a lot of random advertisements for stuff that links to pages (some defunct), but it is still pretty useful.
I got a lot of my graphics from here, but it is pretty useful for horror graphics specifically. There are a lot of early internet type things here.
This is a great place to find any icons you may need. Whether it be for websites, buttons, links, graphics, or whatever. It lets you download transparent PNGs or copy paste them to your clipboard to put right into an editing program.
This is the official website of the project Sue Klebold has praised in a couple of interviews. The Colorado GSP seeks to provide firearms education and mental health resources to anyone struggling. They partner with various advocates, gun shop owners, firing ranges, and other members of the community.
A similar website to the previous one, but with more of a focus on veterans and their loved ones.