http://livehoods.org
.By analyzing check-in patterns throughout the city, we discover its structure..

Some resources...

Gert:
Mappiness . http://mappiness.org.uk
Virginia also showed us a cool AffectButton applet to allow kids to affect emotions through the Web . see http://mmi.tudelft.nl/~joostb/#AffectButton

Vassilis:
Linked Sensor Middleware from DERI . streaming sensor data using a common semantic representation from 110,000 sensors worldwide . http://lsm.deri.ie/ (map interface to see what sensors are there, SPARQL query interface to get data)
Semantic Sensor Network Ontology - http://www.w3.org/2005/Incubator/ssn/ssnx/ssn

Florian:
Ontologies are Us (old but good): http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.60.2861&rep=rep1&type=pdf
Actually, you were asking about ontologies emerging from social web activities . Frank.s example of Wikipedia info boxes to DBpedia facts is a good one, Bibsonomy is another...

Kerstin, Alenka:
Space Syntax, GIS and Ontologies (2012) - http://rd.springer.com/chapter/10.1007/978-3-642-29758-8_5

Jeroen:
We didn.t mention hardware too much but devices like Arduino, Raspberry Pi, MK802 can provide a nice link between the Web and physical spaces. Have a look at Arduino the Documentary for more to see how this electronic controller is being used for art installations, etc. http://arduinothedocumentary.org

Other resources:
Semantic Web and Internet of Things (SPITFIRE, currently running) - http://spitfire-project.eu/
(Smart) Building Ontology (2012) - http://dl.acm.org/citation.cfm?id=2254166
Semantic Web and Smart Spaces COBRA and SOUPA from UMBC 2004 - http://aisl.umbc.edu/resources/125.pdf
Semantic Web use cases http://www.w3.org/2001/sw/sweo/public/UseCases/

I hope you will keep me updated through hashtag #attheverge . it.d be great if people could upload their presentations with the tag attheverge too. I will upload mine later to www.slideshare.net/Cloud

Best regards,

John.
--
John Breslin http://johnbreslin.org http://linkd.in/johnbreslin
Lecturer, Electronic Engineering, NUI Galway http://www.eee.nuigalway.ie
Researcher, Social Software and Semantic Web, DERI http://www.deri.ie
Co-Founder, boards.ie Ltd., StreamGlider Inc., Technology Voice