Knol, Google's Wikipedia beater has been in beta since December 2007. Last week we saw the wrapping come off and Knol opening up to accept new content entries. Knol, short for Knowledge, is on a steep slope to compete with Wikipedia. With 9.2 million UK users [according to Nielson], even with Google's size, trying to achieve over 8bn articles [and counting at Wikipedia] will take some time.