Google Play offers downloads of Here's The Metal Sampler August 2014 MP3 Album for free. That's tied with last week's mention as the best deal we could find for this 14-track, DRM-free album. (iTunes and Amazon charge $1.29 or more apiece for most of these tracks.) It includes tracks from Fozzy, Austrian Death Machine, Scars of Tomorrow, and Skindred.
Google Play offers downloads of its September Antenna 16-Track MP3 Sampler for free. (iTunes and Amazon charge 99 cents or more for each of these tracks.) It features songs from "up-and-coming" artists such as FKA twigs, Naomi Punk, The 2 Bears, The So So Glos, and more.