I've been doing the IMP thing for almost three years now; have flirted with the idea of dropping off, but am likely to keep it up for at least a while longer. Anyway, I've gotten behind in noting them here, and so here we are.
2007
Jan - "Sweet Soul / Disco: 70s - Party Down!"
Feb - "Jazz Convulsions"
Mar - "Score!"
Apr - "SF local mix"
May - "Dear Junior, I Miss You. <3 Senior (SXSW 2007)"
Jun - "Selecao"
Jul - "1977"
Aug - "Game Over"
Sep - "Mix tape"
Oct - "Space & Sci-Fi mix"
Nov - [untitled]
Dec - "Chillaxin"
2008
Jan - "Jan 2008: The Best of 2007"
Feb - "Love Gone Bad"
Mar - [untitled]
Apr - [untitled]
May - "if you were a kiss ... then i'd be a hug"
Jun - [untitled]
Jul - "Uncovered"
Aug - "Country Influenced"
Sep - "Jump Into Fall"
Oct - [untitled]
Nov - [untitled]
Dec - "Disco Villians & Christmas Songs"
2009
Jan - "Happy new year 2009"
Feb - "Cosmopolitan Living"
Mar - "20 Questions" (from Thomas in Glendale, AZ). I listened to this a few times without it making much of an impression; three which stood out (apart from the classic "Do You Realize??" are Andrew Bird's "Why?", PJ Harvey's "Is That All There Is?", and a song called "Where Is My Boy?" with vocals by Chris Martin (done by a dj called Faultline).
Apr - "Ah Spring! When A Young Man's Fancy Turns To Love"
May - [untitled] (from Andrew in Plymouth, MA). The maker's almost-closing salutation, "I hope your records drone sweetly on", says it all. A nice mix, kicking off with a Velvet Underground outtake and ending with Cat Power & Eddie Vedder's exquisite "Evolution", and taking in, among others, Yo La Tengo, Pale Saints, Slumber Party, Beach House, His Name Is Alive and Spacemen 3 in between.
Jun - "Some Old Favourites"
Jul - "Alternative Static"
Aug - "Songs that reference other songs/artists/bands/albums" (from Graham, unknown location). Given the theme, unsurprisingly a mixed bag in terms of musical styles, but mostly pop/rock and polite indie; some decent tunes.
Sep - "Purple Mounted" (from Steve in Alexandria, VA). I think there's kind of a horse/animal theme running through this one; coming with the territory is a strong contemporary country/folk tinge (Neko Case, My Morning Jacket, Bright Eyes, Bon Iver, etc).
Oct - [I remember this coming in the mail - it had a UK postmark - but I'm not sure where the cd itself has got to...no doubt it'll turn up]
Nov - [untitled] (from unknown, somewhere in Australia). A fun one, featuring lots of familiar songs that I like listening to (eg, Vampire Weekend's "I Stand Corrected", "Dry the Rain", the Futureheads' "Hounds of Love"), in which melody and rhythm are both prominent.