I recently saw a site with it's title and 1/4 page of text and nothing else but it had an invisible i frame linking to a big page loaded with the site's keywords - and sure enough it was nº1 in the google serp. Is this good practice to get high rankings? - will google penalise you?( Ihaven't been able to find the site again!!)
I imagine it would take a manual check by google admins (ie after you report the site) because the iframe page's sole purpose was to manipulate the rankings. Sarah