On the Homepage, you can subscribe to topics and categories. Topics are the most popular subjects on your network, while categories help you navigate content on your network.
You can select a category when posting a question or filter search results by category name.
Subscribing to categories and topics means you'll get notifications when content tagged with that category or topic is posted. This will help you stay up-to-date and see content that's most interesting for you.
Learn how to subscribe to topics and categories from your profile here.
Updated almost 3 years ago