Google Blogoscoped is a blog authored by Philipp Lenssen. It has been covering the search engine company Google since 2003.
It is respected by the company it covers, as it is linked to from Google's official blog as part of the "What We're Reading" section. It is consistently in Technorati's list of the top 100 blogs.
John Battelle includes the website in his 2005 book about Google, The Search.
Google Blogoscoped Wikipedia
In 2006 Lenssen wrote the book 55 Ways to Have Fun with Google, which is released under a Creative Commons license.
In April 2008, Lenssen wrote the book Google Apps Hacks, presenting hacks, workarounds and undocumented tips for Google Docs, Gmail, Google Calendar and other Google applications.