Get Updates or Subscribe to Particular Category for WordPress Blogs
To subscribe to particular category or topic for a wordpress blog, you have to append feed after the category URL. That is For example, at Gtricks we call categories as topics. So, if you want to receive updated for articles about gmail then you need to subscribe to : http://www.gtricks.com/topics/gmail-tricks/feed
Subscribe to Specific Label for Blogspot Blogs
To subscribe RSS of specific label your link structure should be: For Example: Google blog posts for mobile label can be found at http://googleblog.blogspot.com/search/label/mobile To subscribe to this label, you need to enter the following URL into address bar http://googleblog.blogspot.com/feeds/posts/default/-/mobile This trick will reduce the number of unread items and you will only be enjoying topics of your interest in your feed reader.