Over at YouMe Works (my website), I have a page entitled simply, Good News. As I come across good news, I put a link to it on there to an article, and I make sure none of the links go dead. I have this page because I often come across news nobody seems to be talking about but it's good enough and important enough that everyone should be exuberantly shouting it from the rooftops.
For example, one of the links goes to an article on food production and how it has improved faster than population growth and how food is more abundant and less expensive worldwide than ever before. Another link goes to an article about the drop in greenhouse pollution in the two most populated countries in the world — China and India.
The list goes on and on. These are stories you don't hear about on mainstream news very often. Most of their news stories are about negative things. News stations have to do this to stay in business (read more about that here) but that doesn't mean you can't avail yourself of good news when you need it.
Try this experiment. Notice what your mood is right now. On a scale of one to ten, what would you say your mood would rate right now?
Then go check out the good news page. Just browse it, follow your interests, not necessarily reading any entire articles, but just spending a few minutes looking things over and following a link here and there that interests you. Then check your mood again.
If you found yourself in a better mood, spread the love. Send a link to the good news page to your friends and family. Just because the media and our own brains have a negative bias doesn't mean we are helpless to do anything about it.
The world is full of great happenings and wonderful breakthroughs. It's good for your mood to notice that once in awhile.