Russia said today it will fine Google ($GOOGL@US) a percentage of its annual Russian turnover for repeatedly failing to delete content deemed illegal. This is Moscow’s strongest effort yet to rein in the U.S. tech giant. The Russian communications regulator said Google has failed to pay $458,100 in penalties levied so far this year, and it will now seek a fine of between 5 and 20 percent of Google’s Russian revenue. The turnover could reach as much as $240 million.