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One or more <category> tags can be used in the <channel> and in each <item> to describe their content. They can either be single tags or they can be paths like

by 6510 5y ago

One or more <category> tags can be used in the <channel> and in each <item> to describe their content. They can either be single tags or they can be paths like /publishing or /publishing/rss Each one can have a domain attribute that points at an url that describes the categorization taxonomy. We no longer have such things for RSS I think? I only know of syndic8 but I've never seen it in action. There is also the <rating> element which is even more exotic. It supplies an advisory label for the content in a feed, formatted according to the specification for the Platform for Internet Content Selection (PICS). You can even run your own rating platform. The categories are for grouping things. A typical blog would have few of them and many entries in each. The tags are more chaotic. Its fine to have a single article with a tag. The domain attribute is for a web directory (I think?) And with the rating system you can give your own units to a property like how advanced, complex or RSS-ish an article is. (arrogance in nano-Dijkstra) All of that combined make for the best science fiction story.

rektide 5y ago
I didn't fully read this long post but thank you for replying to what a large large large part of this post is, which is a discussion of tagging.
hopesthoughts 5y ago
If I were to give you my OPML you'd see several examples of topic-based feeds. Whether that's a category or a tag.
- 6510 5y ago
  If the goal is to connect people looking for [specific] content with websites [providing it for free] We have failed horribly with a mechanism where readers have to ask and give their OPML before the potential reader can find out their categories. With so many new websites being created and so many old ones deleted a static file is not a good solution. If we assume you manage to share your OPML with just the right audience it is almost impossible for a new blog to find its way into this promotional formula. You might find it eventually but it wont show up in the OPML for everyone you've shared it with. My personal client can do OPML but also loads flat feed lists from an url then keeps additional flat lists of feeds that seem broken or gone, lists of feeds that I assume are gone and lists of feeds I'm no longer interested in. Removing the dead feeds and adding new ones still [shamefully] involves periodic manual labor. Its great that one can manually categorize feeds in OPML and that one can provide categories, tags and even a rating service in the feed it self but if the data is never shared anyplace else their is [almost] no point in doing so. As a result most feeds have none. We have: Tags, categories, your own rating system, a shared or public rating service, OPML meta data and the one I forgot: The person (or entity) sharing the feed(s) with you is also meta data. I have no idea how we can wrap all of those into one discovery medium but the idea sounds awesome to me.
  - hopesthoughts 5y ago
    I simply meant feeds like this, for instance. https://lifehacker.com/tag/privacy/rss https://lifehacker.com/tag/privacy/rss I have a whole bunch of tag-based feeds from Pinboard, and searches from HNRSS as well.

by 6510 5y ago

rektide 5y ago

I didn't fully read this long post but thank you for replying to what a large large large part of this post is, which is a discussion of tagging.

hopesthoughts 5y ago

If I were to give you my OPML you'd see several examples of topic-based feeds. Whether that's a category or a tag.

6510 5y ago
If the goal is to connect people looking for [specific] content with websites [providing it for free] We have failed horribly with a mechanism where readers have to ask and give their OPML before the potential reader can find out their categories. With so many new websites being created and so many old ones deleted a static file is not a good solution. If we assume you manage to share your OPML with just the right audience it is almost impossible for a new blog to find its way into this promotional formula. You might find it eventually but it wont show up in the OPML for everyone you've shared it with. My personal client can do OPML but also loads flat feed lists from an url then keeps additional flat lists of feeds that seem broken or gone, lists of feeds that I assume are gone and lists of feeds I'm no longer interested in. Removing the dead feeds and adding new ones still [shamefully] involves periodic manual labor. Its great that one can manually categorize feeds in OPML and that one can provide categories, tags and even a rating service in the feed it self but if the data is never shared anyplace else their is [almost] no point in doing so. As a result most feeds have none. We have: Tags, categories, your own rating system, a shared or public rating service, OPML meta data and the one I forgot: The person (or entity) sharing the feed(s) with you is also meta data. I have no idea how we can wrap all of those into one discovery medium but the idea sounds awesome to me.
- hopesthoughts 5y ago
  I simply meant feeds like this, for instance. https://lifehacker.com/tag/privacy/rss https://lifehacker.com/tag/privacy/rss I have a whole bunch of tag-based feeds from Pinboard, and searches from HNRSS as well.