Google has blogs on almost all of their products. Here are a few Google blogs that Search Marketers can read and get a jump on the competition.
1) The Official Google Blog Insights into Google products, services, and algorithm.
2) The Official Google Webmaster Tools Blog Insights and information about Google Webmaster Tools.
3) The Official Google Video Blog - Showcasing cool new videos from across the web and keeping you current with the latest news from Google Video.
4) The Official Google Analytics Blog - The latest news, tips, and resources straight from the Google Analytics team.
5) The Official Google Base Blog - The latest news, tips, and resources straight from the Google Base team.
6) Official Google Mobile Blog - News and views from the Google mobile team.
7) The Official Google.org Blog - News and notes from Google's philanthropic arm.
8) The Official Google Checkout Blog News for sellers using Google Checkout.