Introduction to OpenCalais
The free OpenCalais service and open API is the fastest way to tag the people, places, facts and events in your content. It can help you improve your SEO, increase your reader engagement, create search-engine-friendly ‘topic hubs’ and streamline content operations – saving you time and money.
OpenCalais is free to use in both commercial and non-commercial settings, but can only be used on public content (don’t run your confidential or competitive company information through it!). OpenCalais does not keep a copy of your content, but it does keep a copy of the metadata it extracts there from.
Teaser:
Heard the buzz about OpenCalais but still have some fundamental questions? Start with this blog post for a big picture overview, and then click on the "How Does Calais Work" link above.
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