Something to read on the subject tagging of content syndication web content?

Recommend literature on the topics of:

1. Tagging content
2. Syndication of web content

Search for anything sensible, except for a small article, failed.
October 3rd 19 at 01:22
1 answer
October 3rd 19 at 01:24
Since your subject is not related, but know a good site where a lot of good literature in English Perhaps there will be (find there almost everything you require).

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