While searching for the most profitable websites, I have found that the best seem to be review sites using affiliate links. Could there be a specific topic that would work out well? Attacking areas known for fraud seems like a good idea to me. But I am having troubl finding something that I definitely want to do. I'm a little lost about which things (old and new) people will reall y be interested in. Does anyone have some ideas.
Look for a topic that you know good amount about and that's at least somewhat popular. Otherwise you end up with a topic that's popular and you know nothing about it, you can't write a review about something that you don't understand. Start with writing a lists of things that you like and can write about, from there see which one has the greatest potential.