It is unlikely the authors of the manifesto had exact timeframes expected for all aspects and the popularity, engagement levels and acceptance of commercial communication will continue to be limited until the principles of the manifesto are applied more.

MySpace has failed to stem its decline, while Facebook keeps on growing the number of its users and engagement levels.

Felix Cohen, a technical consultant from Headshift, a social media consultancy, said that the figure was "impressive" especially because the engagement level of Facebook's users was so high.

City survey responses regarding the engagement level of parents, teachers and students.

By managing the drivers, an organisation can effectively manage engagement levels of its employees.

We are using the survey results to develop and implement action plans to raise existing engagement levels.

SongPop was the top rated game of 2012, based on games that launched on Facebook in 2012 and received the highest star ratings from players and engagement levels over the course of the year.

The technique is used to airdrop supplies, equipment, or personnel at high altitudes when aircraft can fly above surface-to-air missile (SAM) engagement levels through enemy skies without posing a threat to the transport or load.

Their engagement levels, or attention levels, are picked up five times a second and graphed like an E.E.G., then overlaid on the television commercial for the client's use.

The so-called engagement index graphically shows the ebb and flow of attention, but it does not answer why engagement levels vary.