SEALS
The SEALS project is the FP7 European project which aims for developing a reference infrastructure known as the SEALS Platform to facilitate the formal evaluation of semantic technologies, and tends toprovide the evaluation results for several types of semantic technologies through several public evaluation campaigns.
IntelLEO
IntelLEO is the FP7 European project that aims to explore supportive technologies for learning and knowledge building activities of learners in Intelligent Learning Extended Organisations. I am participating in the development of an ontological framework API to support the IntelLEO paradigm (see more).
OPO Server
Online Presence Ontology server is a server that will enable interchange of Online Presence data between different applications that can export them. It also includes building the OPO Data Repository with SPARQL Endpoint and RESTful services, and plugins and services for various applications that will enable their communication with the OPO Server.
Smiley Ontology (SO)

People use emoticons every day as the easiest and most interesting way to express their emotions, state, or action. But their use is limited for many reasons. Smiley Ontology is
an ontology that aims to enable interchange of emoticons between different systems, without any loose of its semantics, and to enable the capture of semantics of emotions and emotional states that are widely spread across the web. For more information visit SO official wiki.
Online Presence Ontology (OPO)
Online Presence Ontology (OPO) is an ontology which aims to model
the dynamic aspects of a user's presence online and to enable exchange of the Online Presence data.
OPO enables the integration of various information about a user's online presence, and the transfer of online presence related data from one service to another without the loss of semantics. For more information, visit the OPO's official web site.
Synesketch
Synesketch is an artistic software library with synesthetic abilities, created by Uros Krcadinac. It is a Web's first free open-source textual emotion recognition and visualization engine – code that feels the words visually. It's interesting, it's fun, it's genious! Visit Synesketch's official wiki.