Original: Google "[believes] that knowing who wrote what will significantly help users make better use of web content", and it hopes that "knols will include the opinions and points of view of the authors who will put their reputation on the line".
Simplified: 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".