http://www.feedsforme.com/google/

Google Cheat Sheet:
lists all Google services and tools as well as background information. The Cheat Sheet offers a great reference to grasp of basic to advance Google query building concepts and ideas.

Sheet 2:

[ Official Google Blog ]

Google Blog - http://googleblog.blogspot.com
Google Talkabout - http://googletalk.blogspot.com
Google Base Blog - http://googlebase.blogspot.com
Google Video - http://googlevideo.blogspot.com
Inside Google Desktop - http://googledesktop.blogspot.com
Google Code - http://code.google.com
Inside AdWords - http://adwords.blogspot.com
Inside AdSense - http://adsense.blogspot.com
Google Reader Blog - http://googlereader.blogspot.com
Blogger Buzz - http://buzz.blogger.com
AdWords API Blog - http://adwordsapi.blogspot.com
Google Enterprise Blog - http://googleenterprise.blogspot.com
Google Research - http://googleresearch.blogspot.com
Google Maps API Blog - http://googlemapsapi.blogspot.com
Google Writely - http://writely.blogspot.com
Inside Google Book Search - http://booksearch.blogspot.com


[Googler Blogs]
http://bmaurer.blogspot.com/


[ Some Google watching blogs ]
http://googlesystem.blogspot.com/
http://www.kenwong.cn/