Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.The past decade web has seen a major transformations in development and
design to facilitate a user interactive environment commonly referred as Web
2.0. Web 2.0 services include web-based communities, hosted services,
social-networking sites, media-sharing sites, wikis, bogs and mashups.
Member contributions feed these online communities and are the force
behind the increased volume of multimedia resources that are available on
the web. In 2006 Time Magazine selected users of Web 2.0 for ‘esteemed
person of the year’ award for their active involvement in generating web
resources and shaping these resources into collective intelligence
