When I really like something I usually try to tell the artist/author/etc so. I began writing book and movie reviews this year and so far a few authors even liked them!
I also started checking out games by new game studios and so on. Sometimes I post pictures of their games on my Twitter account so other people can check the games out too! I do my best to make new artists etc more popular! A few of those "unpopular" artist even wrote to me on social media and thanked me for helping them! It makes me feel really good to know that I can help someone and make someone happy! They deserve it!