I wanted to post a full review but since Trendly did a good job of explaining how it works, I got lazy. The idea is simple. Google Analytics shows you how many visits each traffic source generates but it will probably take more than a few clicks to understand exactly which source brings you the most traffic last month and even harder to understand how this same source trends compared to other sources over the last couple of months. Trendly does exactly that in 4 clicks:

1. Click to try Trendly for free.
2. Allow Trendly to access your Google Account.
3. Choose the profile you would like analysed.
4. Wait for email notification to Trendly results and click on the link provided.

Trendly is still in preview phase so do go ahead and try for free while you can! On a side note, Enhanced Google Analytics Firefox extension does something similar on a smaller scale.

Any more interesting projects making use of the Google Analytics Data Export API that I should know of?

The advantages of using filters:

• You can (and you should) create an additional profile with the same tracking ID to track country specific search engines while leaving the original profile for an overview. Calling _addOrganic() will modify all the profiles with the same tracking ID.
• Visitors to your website do not have to load a long list of JavaScript code containing all the additional search engines you want to track therefore reducing some (minimal) load time.
• There should be no changes required even if Google deploys another search engine at www.google.new.tld. If you call _addOrganic() with a static list of search engine names, you will have to add and update your list of search engines to track.

This is an example of the steps required to track additional Google search engines using a single filter:

• Create an additional profile with the same tracking ID.
• Add a new filter with filter type as “Custom Filter” and choose “Advanced“.
• Select “Campaign Source” under “Field A -> Extract A” and enter “^google$” as input.
• Select “Referral” under “Field B -> Extract B” and enter “^http://www\.(google\.[^/]*)” as input.
• Select “Campaign Source” under “Output To -> Constructor” and enter “$B1” as input.
• Set “Field A Required” to “Yes“.
• Set “Field B Required” to “Yes“.
• Set “Override Output Field” to “Yes“.

What this filter does is to check that the traffic source is one of Google’s search engines and thus extract the “google.com.sg” part from the referral field (usually something like “http://www.google.com.sg/search?q=…“) then show the search engine source as “google.com.sg“. Do take note that while this is an example for Google search engines, the same steps (with slightly different input) will work with other search engines.