If you use Google Analytics then the Google Analytics Blog (analytics feed) is the quickest way to stay updated with recent tips, resources, release information and news about Analytics. Thousands of websites have started using Google Analytics, including this one. Google Analytics is free and provides an amazing range of detailed statistics for overall Site Performance & Referring Statistics, Search Engine Marketing Statistics including Adsense, and Web Design Parameters ranging from screen resolutions, browser versions, languages, and more.

[tags]google,analytics,statistics,sem[/tags]

A nifty idea by Great Paying Keywords allows you to quickly search through an A-Z listing of Free Google Keywords allowing you to compare the max and average costs of thousands of mainstream keywords. The website states the dollar amounts are calculated over the past 180 days. Tons of keywords and a great guide for anyone who buys keywords.
[tags]Google, Adsense, Search Engines, AdWords[/tags]

Using the Google Datacenter Watch Tool will allow you view your rankings for keywords across the different Google Datacenters at the same time.

[tags]google,search,internet[/tags]