All RSS feeds can now have category feeds automatically, courtesy the FeedBlitz RSS service. Simply add /tag/ and then the category to any FeedBlitz RSS feed and the filter is applied.
- So here is the main FeedBlitz News feed: http://feeds.feedblitz.com/feedblitz
- And here is every post tagged “features”: http://feeds.feedblitz.com/feedblitz/tag/features
- And here is every post NOT tagged “features”: http://feeds.feedblitz.com/feedblitz/not/features
Easy! You can separate multiple tags with commas, like this:
http://feeds.feedblitz.com/feedblitz/tag/features,rss
Or, include multiple tag definitions, like this:
http://feeds.feedblitz.com/feedblitz/tag/features/tag/rss
You can also mix “tag” and “not” like this:
http://feeds.feedblitz.com/feedblitz/tag/features/not/rss
All these tag filters work for the XML RSS feed, the browser (and SEO) friendly HTML versions, and the mobile versions that FeedBlitz generates automatically.

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I just signed up for a trial period because of this functionality, and will keep using FB as a paying subscriber if it works because it is so important to my blog as I blog about vastly different industries and don't want my readers to have to see posts in industries unrelated to theirs.
Unfortunately, it doesn't seem to work. Namely, entering the category-specific URL in my browser, for instance http://feeds.feedblitz.com/growthtimes/tag/market/ (for my old blog), the filter is applied. However, if I subscribe to the feed or ask for emails, the filter does not work.
Also, I added 2 custom fields to my newsletter subscription but they do not appear in the admin area and I cannot delete them (although they do appear when one subscribes to the newsletter).
Last, it's very unclear how to set up FB in wordpress… I'll keep digging but I am finding FB much less user-friendly than I initially expected for a paying service.
So far I am quite confused with setup. I hope to hear from support!
Hi @Greg:
Support is the place to seek help, not the comments! We'll be in touch
Phil
Indeed, and that was fast. Thanks Phil!
All problems solved, including that filter that was not applied to the subscription options – now it works great. This is definitely a key differentiator for Feedblitz compared to other services-that-shall-not-be-named! I think you're the only one who enables RSS-to-email filtered by tag and category on WordPress and that makes you a winner as far as I am concerned.
Keep up the good work, and thanks again.