There is one default 'front page' that has the most voted items from a default list of subreddits (subgroups within the main group). It takes a little time to learn how to use, e.g., to select the subreddits you're interested in and eliminate the ones you aren't, otherwise, there will be a lot of material that doesn't interest you. If you want politics, pick some political subreddits. If you want cat videos and cute pictures, choose those. Christians, atheists, Islam, etc. have their own groups as do most countries, cities, etc. There are also different ways to view each subgroup, e.g., most popular, newest, most controversial, best of, etc. Anyone can start a subreddit if they're willing to moderate it, and there are THOUSANDS of them. It takes getting used to but ANYONE can find what interests them. Pay attention to the posts you like as they'll tell you what subgroup they came from and you can subscribe to it, likewise unsubscribe to the ones you don't.