What do you people think is the importance of Google's cache: operator from SEO point of view?
First, a little background for those who may not be familiar.
cache is one of the Google Advanced Operators:If you include other words in the query, Google will highlight those words within the cached document. For instance, [cache:Google web] will show the cached content with the word "web" highlighted.I can't think of a way that this could affect SEO.
This functionality is also accessible by clicking on the "Cached" link on Google's main results page.
The query [cache:] will show the version of the web page that Google has in its cache. For instance, [cache:www.google.com] will show Google's cache of the Google homepage. Note there can be no space between the "cache:" and the web page URL.
I can't help to to recall a line from Hamlet, "There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy."
There may be some unknown SEO-related effect from the Google cache, if not from the cache operator directly. I do occasionally see traffic from the Google cache.
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Here is something related to cache I found that might be of interest to SEO'ers here...
If your page gets clicked on often enough, it gets stored in the search engine's cache, a storage buffer for speedy retrieval of Web pages. Cache data is analyzed and pages in it are given a big boost in positioning. One simple way to boost your cache is to use the search engine to find your page and click on your own link. Do it once a day. Have staff with multiple computers? Get them all to click your company Web page link once a day. Another way is to pay for inclusion, get spidered every two days and optimize your way into the top 20. Soon you'll be in the cache. Then, the rest of the Internet will take over with their clicks.
I will click on cache if I am searching for something in particular and I couldn't spot it on the page. Say you are researching a laptop by number but the page talks about multiple laptops or its a forum, the cached results will highlight what you searched for.
Some forum results are cached but if you click on the normal results it takes you to more recent forum posts instead of what the search showed.
But as far as SEO affects - seems only black hats really see the difference. They serve the spiders one page but us humans get a different page.