> For the complete documentation index, see [llms.txt](https://glossary.ecsa.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://glossary.ecsa.io/index.md).

# Index

An index measures a certain aspect of the performance of the network. Indices, as network and knowledge derivatives, build from this information will be the primary content discovery paradigm of the Economic Web where nodes are [Economic space agent](/economic-space-agent.md)s and tokens the links in the network - just like keyword based search was the dominant content discovery paradigm in Web 1.0 (where nodes were documents and hyperlinks the links in the network) and social based feed was it for Web 2.0. (where nodes were people, brands and likes/follows the linking mechanism).


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