This is very important for everyone who use Wikipedia: quality problems on the free online encyclopedia are so common that one of its founders will start a new one, with the data corrected by specialists.

This was a thing that everyone could guess, given the free access to Wikipedia's articles by those who simply have an account, but I have to admit that, sometimes, I forgot that.

Then, Wikipedia can serve us as a place to investigate info, but not simply to take it as truth.

The new project is called Citizendium (home page) and was proposed by Larry Sanger, former Wikipedia editor-in-chief, on September 15, 2006:

...intended to begin as a "progressive or gradual fork" of the English Wikipedia [source]
.

The other co-founder of Wikipedia, Jimmy Wales, has also said:

Wikipedia ... founder Jimmy 'Jimbo' Wales has warned students not to refer to Wikipedia, reports the US education weekly The Chronicle [source]
More info on the next links:

From theregister.co.uk:

- Wikipedia founder forks Wikipedia (September 18, 2006)
- Avoid Wikipedia, warns Wikipedia chief (June 15, 2006)
- Who owns your Wikipedia bio? (December 6, 2005)
- Wikipedia founder admits to serious quality problems (October 18, 2005)

Wikipedia articles:

- Citizendium
- Wikipedia, section Criticism and controversy

Other:

- The Citizendium project home page, pilot project, applications to participate