Shuttered Muxtape included on PC Magazine's list of top "undiscovered" sites PC Magazine includes Muxtape in its latest listicle , the "Top 100 Undiscovered Web Sites," even though the RIAA's already "discovered" it, triggering a shutdown . Poor Kyle Monson, the writer of the piece — those cushy, weeks-long magazine lead times from when a piece is submitted to when it's published do have their downsides.