| API | Description | Category | Date |
|---|---|---|---|
| Semantic Contextual Advertising | Contextual ad matching | Advertising | 2010-11-10 |
| Crystal Semantics Content Categorization | Content categorization services | Advertising | 2011-07-05 |
| Peer39 | Semantic advertising service | Advertising | 2012-06-22 |
| Sociocast Prediction | Audience analytics and segmentation service | Advertising | 2013-02-27 |
| Zemanta | Blog authoring extension services | Blogging | 2008-07-20 |
| hbookmark | Real-time semantic bookmarking via Twitter | Bookmarks | 2010-05-13 |
| Saffron Sierra | Natural intelligence database | Database | 2010-02-01 |
| Maiana | Topic Maps Browser and Editor | Database | 2011-02-08 |
| Dydra | Cloud-based RDF store | Database | 2011-05-12 |
| Lexaurus | Vocabulary management service | Database | 2011-10-25 |
| LX-Center | Linguistic text processing services | Education | 2012-06-15 |
| Achievement Standards Network | Semantic instructional standards service | Education | 2012-09-18 |
| Sketch Engine | Word behavior and occurrence information database | Education | 2013-03-11 |
| Kudos Flockworks | Semantic text analysis service | Enterprise | 2012-04-30 |
| Säsongmat | Swedish-language seasonal food information service | Food | 2012-02-29 |
| Data.gov.uk | Public government database | Government | 2010-01-20 |
| Openly Local | Government information tracking service | Government | 2010-04-21 |
| Influence Explorer Text | Textual analysis tool | Government | 2011-08-01 |
| Ping the Semantic Web | Semantic web standards service | Internet | 2010-10-18 |
| Amplify | Content analysis service | Internet | 2009-05-08 |





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