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'''[[wikipedia:Social_networking_service|Social-Networking Service]]''': On-line platforms or web sites that facilitates the building of social relationships (virtual), among people who share common personal, professional interests or are known to each other in real-life, are known as social networking services. Orkut, Facebook, Twitter , LinkedIn, MySpace are some of the common online social networking providers.    Social networking sites allow users to share ideas, activities, events, and interests within their individual networks.  

'''[[wikipedia:Social_networking_service|Social-Networking Service]]''': On-line platforms or web sites that facilitates the building of social relationships (virtual), among people who share common personal, professional interests or are known to each other in real-life, are known as social networking services. Orkut, Facebook, Twitter , LinkedIn, MySpace are some of the common online social networking providers.    Social networking sites allow users to share ideas, activities, events, and interests within their individual networks.  

'''Personal digital library (PDL)''': A folder containing a set of sub-folders and files on your computer, which contain information on a particular topic.   

'''Personal digital library (PDL)''': A folder containing a set of sub-folders and files on your computer, which contain information on a particular topic. The files and folders are organised and named meaningfully to enable easy access to the information in the library.   

'''[[wikipedia:Professional_learning_community|Professional Learning Communities]]:''' Networks of professionals who interact (usually on virtual forums as well) for mutual learning and support. Such communities can be very useful in supporting continuing teacher professional development.   

'''[[wikipedia:Professional_learning_community|Professional Learning Communities]]:''' Networks of professionals who interact (usually on virtual forums as well) for mutual learning and support. Such communities can be very useful in supporting continuing teacher professional development.