Phil Gons has information on a free commentary offer from Logos:
In an effort to promote the Cornerstone Biblical Commentary series, Logos is giving away the Matthew, Mark volume by David L. Turner and Darrell L. Bock for free—no strings attached! Make sure to use coupon code CORNERSTONE.
NOTE: If you don’t already have a Libronix Customer ID, make sure to download the free Libronix engine and create a Libronix Customer ID before you grab this commentary.
It’s a limited-time offer. Spread the word!
Turner has also recently written a commentary on Matthew for the Baker Exegetical set.