Knol
Anyone who wants to contribute to Knol must first sign in, with a Google account. The users should give their real names. If permission is given, Google will check if the name is true. Google will do this by credit card or phone. Google "[believes] that knowing who wrote what will significantly help users make better use of web content". The company hopes that "knols will include the opinions and points of view of the authors who will put their reputation on the line".