Knol: a unit of knowledge, was a beta offering from Google. It is a Wiki platform with new features, new posting rules and community tools. One major difference will be the inclusion of pay-per-click ad services.  According to the official Google Blog "The web contains vast amounts of information, but not everything worth knowing is on the web. An enormous amount of information resides in people's heads:"
On November 22, 2011, Google decided it was pulling the plug on seven projects, and Knol would be one of those. The decision by CEO Larry Page was "Spring Cleaning" to focus on fewer efforts. 
Quotes on Police State Social Media Surveillance
- "The progress of science in furnishing the government with means of espionage is not likely to stop with wiretapping. Ways may some day be developed by which the government, without removing papers from secret drawers, can reproduce them in court, and by which it will be enabled to expose to a jury the most intimate occurrences of the home. Advances in the psychic and related sciences may bring means of exploring unexpressed beliefs, thoughts and emotions. 'That places the liberty of every man in the hands of every petty officer' was said by James Otis of much lesser intrusions than these. 1 To Lord Camden a far slighter intrusion seemed 'subversive of all the comforts of society.' Can it be that the Constitution affords no protection against such invasions of individual security?"
- Tools of censorship
- NSA and other Intelligence agency mass surveillance: PRISM, Wiretap - Roving wiretap
- Electronic Frontier Foundation
- Prism-break.org - Opt out of global data surveillance programs like PRISM, XKeyscore and Tempora.
- Duck Duck Go search engine instead of Google, Yahoo and Bing
- Official Knol Homepage
- Google's Wikipedia rival, Knol, goes public CNET July 23, 2008
- Official Google Blog July 23,2008
- Google quits plans to make cheap renewable energy, Reuters, November 22, 2011
- "Help make mass surveillance of entire populations uneconomical! We all have an unalienable right to privacy, which you can exercise today by encrypting your communications and ending your reliance on proprietary products and services."