Any web developer knows it:

Create websites according the Google’s Webmaster Guidelines!

If you read the current blog post from Google Webmaster Central these Guidelines are not changed. Only the help pages are extended and give more information about each rule.

About the rule “Hidden text and links” there is the following information available:

Hiding text or links in your content can cause your site to be perceived as untrustworthy since it presents information to search engines differently than to visitors. Text (such as excessive keywords) can be hidden in several ways, including: Using white text on a white background, Including text behind an image, Using CSS to hide text, Setting the font size to 0

I know a lot of modern Ajax/JavaScript function are using some text which is hidden by CSS (display:hidden) and upon some event this text (content) becomes visible. This is not some of “Black hat SEO” but just using some JavaScript behavior to create nice and modern effects on a web page.

OK, I didn’t any site which is blacklisted from Google because of this kind of “violation” against the Google quality guidelines but what this clarified rules are the beginning of some new strategy to punish more websites? Remember that bigger sites like from BMW or TemplateMonster got banned because of violating the Google guidelines a few years ago. So what happens next?