If Google REALLY isnt doing what it says, it will get into trouble. One site that experienced it was Widget Checker. Its URL, which had been cached and was accessible, went dead and so did the live chat system it was tied in to. Though they tried to clear up what was going on, as the days went by, the site became more and more down. The Google WebAccelerator block had to be removed from the Google robots.txt file, a move they made just a few days after the site went down.
Web sites wishing to evade such unwanted activity can use a Google script called Google WebAccelerator Block. There are some limitations though, since some Google search queries will still be able to reach the site because of the redirect function in the code. Further, its not really functional if someone types the site into the search box, since the link to the site will be removed after a couple of refreshes.
The use of WebAccelerator by Google is as controversial as it is useful. Like the ability to search for something and Google doing the crawling for you in an ultra efficient manner, the problem is that its the kind of behavior that could put people off the web. Webmasters expect to control what is done with their content, not have it done secretly behind the scenes, as is the case with Google WebAccelerator. Whether Google should be allowed to take the easy way to crawling and indexing the internet is a moot point. (For the record, we are an early user of GWA and have taken their suggestions to heart).
Using Google WebAccelerator, Google not only can click on your links, but it can also track your actions, making it easier for people to map your browsing activities to your actual identity. And it’s not just Google. Every server that has the WebServer accelerator running can track your activities even when you’re logged in to other sites. For example, if you’re browsing one site, and then search for something, you’ll still notice a change in your history. One site is trying to keep track of what you’re doing, and it’s really not a good thing.