When you follow a feed you can give it a custom name and category.
In order to do that:
- Click "Show feed saving options", when you are following the feed:
- Then give the feed a category (and/or name) of your choice:
- This will add links to the categories you created here:
- Click on those will show you only stories from feeds which you gave the respective category.
You can also give a feed a category to a feed (or modify it) after you followed it on your Followed feeds page, i.e. here: