The copyright has expired for the old ICC commentaries; it has likely not been renewed because new volumes are being written for the series.
What’s the benefit? You can now browse–even download in pdf format–all the ICC commentary volumes! I’ve already snagged them all and stored them on my harddrive. While they may be dated, no one can argue that they are written by some of the big names in the field of biblical studies.
To go to the site, click HERE.
H/T: Rob Kashow