Petri's site search engine: (It doesn't work on some Internet Explorer versions.)

Write into the search field (Google Custom Search) word or words and push search button. By Google Custom Search, you can search from my sites writings and information.

Google Custom Search is the most accurate search engine, which search every word that you are looking for on my sites. Ads are indexed by Google, and I cannot affect  them in any ways. I hope that ads don't annoy you.

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Download and install into your computer safe and fast Google Chrome browser: http://www.google.com/chrome?hl=en