First, something a little mellower. I'm not a huge fan of techno/electronica-type music, but there is some bloopy stuff I enjoy. How convenient for me that one of my favourite bands has at least one cool song in this vein (and virtually every other vein besides). That song is "Digital Sea" from the Water portion of Thrice's 2007 album The Alchemy Index: Vols. 1-2, and it's also your song for yesterday.
Next up, we're going a little more aggro with one of my favourite Deftones songs. Diamond Eyes and Koi No Yokan were both really good records, but when it comes to the Deftones, White Pony still holds the crown in my book. And if we're talking White Pony, we need to be talking "Knife Party", if only for the spine-tingling vocal cameo by Rodleen Getsic near the end of the song. Her performance gives the song a particularly haunting quality that has stuck with me since I was in high school.
Finally, for your Friday song, we'll sample something heavier still. Specifically, we're going with "We Are the Nightmare" which is both the title track to Arsis' 2008 album as well as the opening one. This is the first song I ever heard by Arsis, and I was instantly intrigued. Tasty tech-death with a pretty keen sense of melody? Yes please. Their stuff since this album has been equally technically brilliant, but for me has failed to rebottle the lightning of We Are the Nightmare. If you're into this kind of thing, you should definitely give this album a spin.