Google Off/On Tags

[Hakkasan]

I came across this article about telling google not to crawl a portion of a webpage, but I never hear anyone in the SEO community talk about them. http://perishablepress.com/press/2009/08/23/tell-google-to-not-index-certain-parts-of-your-page/

Does anyone use these and find them to be effective? If not, how do you suggest noindexing/canonicalizing a portion of a page to avoid duplicate content that shows up on multiple pages?

[Florakel]

I usually do one of these:

• put the duplicate content in an iframe (ugly and not flexible). I use this for static content like ad spaces

• load the content async with Javascript. All googlebot will index is an empty div. The user will see the content loaded with JS after the page loaded. In most cases there is no noticeable difference in how the page renders.Very easy to do with Jquery. My favorite solution.

[Hakkasan]

Thanks for clarifying!

Do you have any suggestions on how I can avoid duplicate content that is appearing on multiple pages without noindexing the whole page (there is original content at the top, duplicate at the bottom)?

[Trupanion]

Googleon and Googleoff tags are commands for the Google Search Appliance