I've been a bit rubbish on my usingtheinternettosavetheworld stuff. So far I've done Avaaz, and egg a politician, but this is the big whammy. Going in for the kill, you might say. It is...wait for it...wait...facebook. Were you really disappointed? Did you think I was going to let you into a huge secret? Like the masonic order of charity websites? Enough with the questions.
Facebook is a good way to quickly let people know about things. You can post things on your wall, or your friends' walls. These things can be videos, links to news articles or other websites, all about things you are concerned or want to raise awareness about. There are also applications that can be used. Rather than just throwing sheep at people, or answering a quiz to determine what vegetable alkaloid you are (quinine), you can actually change things for the better.
Start with the Causes application. You can use it as a way to give money, but I mainly use it to show what charities I support. You can invite others to join, and therefore raising awareness.
My next application is the SuperBadger application. It is basically the same premise as Avaaz, but via facebook. It allows you to email (or badger, gettit?) politicians, business owners and other important people. An example of how SuperBadger has been successful is that Thornton's now stocks Fairtrade Chocolate. Read this Cadbury article on SuperBadger.
To see other articles on this topic, see the tags websites or world issues.