Mystery of zero visits in Google Analytics solved

Keywords report has some keywords with zero visits! Is this a mistake?

After Googling around and found the answer in varies blogs. If the visitor did a second/third/fourth/...etc. search within 30 minutes and arrived at our website again, the second/third/fourth/...etc. search keywords will be logged but the visits count will go towards the first keywords.

Here are some of the blogs that covers this issue.

http://www.yoursearchadvisor.com/blog/google-analytics-keywords-with-zero-visits/

http://www.google.com/support/forum/p/Google+Analytics/thread?tid=0d04370f123bc16c&hl=en

http://www.seomoz.org/blog/advanced-google-analytics

Live optimization

Watching Live Optimization from Marketing Experiment. It has a lot of nuggets in how to tweak web pages to rank higher in searches. Some quick points:

1. For establish websites, put the brand last in the page
2. domain name that has keywords 
3. keywords in url path
4. listed in directories like Yahoo!directory
5. content development

Some of the things I have read bits and pieces from blogs but have not seen how it is done. This webinar provided me a concrete examples of what should be done for SEO. Highly recommended for someone trying to get their heads around SEO.

How to improve your SEO clicks and conversions

Will start applying some of the thing I picked up to discount dental plan