Here is the Google AdWords weekly update all rolled up. Looks like there has been some exciting things happening while I was away.

REACH & FREQUENCY VIA REPORT CENTER
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This week, we launched Reach and Frequency metrics within Report Center that show how many people saw an advertiser’s ads and how many times they saw them over a certain period of time.

• Reach and frequency data will be available at the site, Ad Group, and campaign levels for CPM site targeted campaigns starting after January 1, 2007.
• Reports are available for daily, weekly, and monthly time periods, as well as the cumulative daily stats (summary). At the site level, only weekly reports are available.
• Reach and frequency statistics are calculated using an IP-based estimation method as opposed to a cookie-based approach favored by some other companies.

PERSONALIZED HOMEPAGE – NEW FEATURES
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The Personalized Homepage team recently launched a few nice features to help users set up their pages and discover new content:

(1) “Magic” Tabs — If you click “Add a tab” on your Personalized Homepage, you’ll be prompted to enter a tab name. You’ll also be given the option to have default content selected for you based on the name you’ve typed. A few particularly good examples: “Astronomy” “Travel” “Japan.” This feature is implemented algorithmically based on community data.

(2) Item-to-item recommendations — If you click the drop down arrow on one of your module headers, there will be a link “You might also like…” Clicking this gives item-to-item recommendations. This is also generated based on community data and is similar to Amazon’s “Users you liked this also liked …” feature.

(3) Ratings and Reviews — The Personalized Homepage content directory now includes ratings and reviews. You can read reviews and comment on gadgets by clicking the gadget thumbnail in the directory. A gadget will receive a rating after more than two people have rated it

PLUS BOX: GOOGLE FINANCE LAUNCH
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We will soon launch Plus Box results for Google Finance content, which allows users to click and see additional finance-related information provided within web search results. For example, type [general electric] and click on the Plus Box to expand for more information.

ADWORDS EDITOR 3.0 NOW AVAILABLE FOR MAC
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AdWords Editor 3.0 is now available for Mac. Like the Windows version, AdWords Editor 3.0 for Mac now includes the ability to add/edit site-targeted campaigns, add/edit negative sites for keyword and site targeted campaigns, edit another account while posting in the background, and pause/resume ads, keywords, and sites.

INVALID CLICK ANNOUNCEMENT
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Last week, we announced Google’s overall invalid clicks numbers on the Inside blog to provide you and your advertisers with more transparency into this subject. As you may receive questions from clients regarding this post, we want to make you aware of it.

With this update, we’re letting you know that although the percentage of invalid clicks fluctuates, on average, it has remained less than 10% of all clicks. However, please note that this rate is an average across our entire system and is not indicative of the percentage of invalid clicks that have been detected and filtered out of an individual advertiser’s account. To find this number, you should run an invalid clicks report.

In addition, we’re announcing the percentage of clicks that are not pro-actively detected by our systems, but are instead credited for reactively. These undetected cases of invalid clicks constitute less than 0.02% of all clicks. In other words, for every ten thousand clicks on Google AdWords ads, fewer than two are reactively detected cases of possible click fraud. This proportion has stayed within this range every quarter since we launched AdWords, even as the issue of click fraud achieved more widespread media attention. In the cases of reactively detected invalid clicks, a refund or credit is provided to the advertiser, and we utilize the discovery as a feedback mechanism to improve our proactive detection systems.

Please take some time to read through the post at http://adwords.blogspot.com/2007/02/invalid-clicks-googles-overall-numbers.html