Because of the forums, this one in particular, I get a good sense of what the people who post are all about. There are some whose recommendations I would take in an instant, and some whose 'like list' will most likely not be mine as well. I learn as much about what I want to read as what I don't want to read. Each fantasy website has a different amibiance and, depending upon what I am in the mood for, I will frequent one or another for ideas.
I also converse often with other authors whom I respect for their insight and talent, and I almost always read what they think is wonderful.