Blogger:
For example, I wanted a feed for AIA East Bay that only included posts with the label ‘Revit’. Here is what the split feed looks like:
http://www.aiaeastbay.blogspot.com.au/feeds/posts/default/-/Revit
Easy way to do it:
To convert that search label into a Blogger RSS feed, replace the string /search/label/ with /feeds/posts/default/-/ so the new feed URL for that search label has the following syntax:
via
Offer RSS Feeds for Blogger Search Labels Similar to WordPress Category Feeds
Another example – all of the What Revit Wants posts that include the label ‘pdf’ can be found as a feed at:
https://wrw.is/feeds/posts/default/-/pdf
Also see:
http://support.google.com/blogger/bin/answer.py?hl=en&answer=97933
Create a WordPress feed for a particular label:
It is even easier. To subscribe to a particular category feed of a WordPress blog, all you have to do is add /feed after the category url (link).
eg. http://cadspeed.wordpress.com/tag/revit/feed/