YouTube
YouTube needs no presentation but here it goes anyway. It’s a free online video streaming service that allows users to view and share videos that have been uploaded by members. Anyone can view and share videos, and members can upload videos and use other features, free of charge. YouTube is the best site to begin ‘Great Web 2.0 Tools‘ because it is probably the most popular Web 2.0 site and surely the most expensive transaction ever on the web site market. It’s now owned by Google.

































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