1. Web 2.0 meet Semantic Web at Yahoo! Dave Beckett Yahoo! Media Group November 8, 2006

2. 2 Yahoo! as Participation Platform Use your stuff with our stuff Read / write web – Web 2.0 FUSE: –Find –Use –Share –Expand

3. 3 Lots of Open Data Many Data forms: search, text, bookmarks, tags, maps, images, video, audio, events, jobs,... APIs Users: 500M+/month Relationships, groups, friends Mashups!

4. 4 Web Technology core HTTP web services Web content – HTML, CSS,... Web metadata – RDF/OWL Describe metadata – RDFS/OWL Constrain metadata – OWL Mix the metadata – vocabularies Query it – SPARQL?

5. 5 Yahoo! Food: food.yahoo.com