15. Users can build on the interactive facilities of "Web 1.0" to provide "Network as platform" computing.
16. Users can own the data on a Web 2.0 site and exercise control over that data.
17.
18. Other characteristics, such as openness, freedom and collective intelligence by way of user participation, can also be viewed as essential attributes of Web 2.0.
44. Many of the ideas of Web 2.0 had already been featured in implementations on networked systems
45.
46. But perhaps the most common criticism is that the term is unclear or simply a buzzword.
47. "Nobody really knows what it means...If Web 2.0 for you is blogs and wikis, then that is people to people. But that was what the Web was supposed to be all along."