The image below shows sea ice extent as calculated by the Polar View team at the University of Bremen, Germany, updated August 25, 2012.
The image below, edited from the National Snow & Ice Data Center (NSIDC), shows the situation according to the NSIDC updated at August 23, 2012. It's clear that Arctic sea ice extent looks set to reach the 2007 record low within days, if it hasn't been reached already now.
For updates, see the daily images produced by the NSIDC. Note that, to calculate extent, both the NSIDC and the Univeristy of Bremen include areas that show at least 15% sea ice. In the image below, from the Danish Meteorological Institute (DMI), areas with ice concentration higher than 30% are included to calculate ice extent.