Alternative Websites

Every once in awhile I find a website that I like (or don't like) and want to know if there are other websites like it. It might be because I'm looking for a free alternative or I just don't like a certain website or app and want to know what else is out there that's similar. I've found quite a few cool websites this way. One site that finds alternatives is called Alternatives To. Another is Similar Sites. Giddy up.