http://en.wikipedia.org/wiki/Community

 http://en.wikipedia.org/wiki/Water

 http://en.wikipedia.org/wiki/Forests

 http://en.wikipedia.org/wiki/Food

 http://en.wikipedia.org/wiki/Energy

Well these are my five links, also you can get them from the link pile. I don't know if this is done right, but I'll give it a try. Sustainability to me means something that can last. For example, trees are sustainable. In the Amazon there being cut down. My links will take you to community, water, forest, food, and energy. I choose these links because they were the best examples I could think of that would help me explain and best understand sustainability. We as a human race need water to live, it's simple, if we didn't have water we would all die. Waters is needed for anything to live, and it works with all of the other links. Animals need water, trees need water, and we even need water to cook some foods, or water is already in it. Food is also needed for survival, and it is a sustainable source. Food is always around, even though it is getting expensive. Humans, animals, and plants need food. Plants even supplies some sources of food.  In a community you need people to sustain it. It takes involvement to make a community a success. People have to live somewhere, and that is where I think sustainability will come in at, because people will always be around. For human life to sustain, we need forest. Why? Because the trees give off the oxygen need for humans to live, and tress live a long time. Energy is burned every day. You burn energy when moving around, and with electrical appliances. In the world we live in today everything takes electricity. So, people have had to find ways to make it sustainable, and they have. This is something that will always be around. There are many things that are sustainable , and you often need one thing that is sustainable to sustain another.