If you "like" more things that you are actually interested in, you will start to see more targeted ads. I never "liked" anything for a while and I was getting

If you "like" more things that you are actually interested in, you will start to see more targeted ads. I never "liked" anything for a while and I was getting those same generic ads (because they didn't have enough data to target me) but once I gave them the data they wanted, I started seeing ads for things that I am actually interested in (comedians I like coming to my city, adventure races in the area, movies that are opening soon). I find the ads on Facebook to be way better than the ads on Google (I actually click and buy things with ads from Facebook). However, if you go crazy and click the "like" button every time you see it, you will go back to seeing irrelevant ads.