It looks like my original post in this topic has disappeared - or it's in another thread and I can't find it. Either way, here are some of my favorites from my playlist, in no particular order. I apologize if some of these songs have already been posted, and for cross-posting since there seems to be a few similar threads.
In addition, check out "marathon," and Running through the hits, Running through the 70s, Running through the 80s, Running through the 90s on i-tunes Essentials Playlists. Great collections!
Missed the Boat - Modest Mouse
Lose Yourself - Eminem
Stolen - Dashboard Confessional
Read My Mind - The Killers
Numb - Linkin Park
Wolf Like Me - TV on the Radio
Survivalism - Nine Inch Nails
White America - Eminem
Keep the Car Running - Arcade Fire
Points of Authority - Linkin Park
Santa Monica - Everclear
Into Your Hideout - Pilot Speed
Signal Fire - Snow Patrol *Great for fartlek running!
The Idea of You - Dave Matthews Band
Soldier - Eminem
It Hurts - Angels and Airwaves
The Crane Wife 3 -The Decemberists
The Adventure - Angels and Airwaves
Tessie - Dropkick Murphys
Square Dance - Eminem
Politik - Coldplay
Powerless (Say What You Want) - Nelly Furtado
Slow Decay - Dashboard Confessional
In the End - Linkin Park
Where the Streets Have No Name- U2
Do It For Me Now - Angels and Airwaves
Move Along - All-American Rejects
God Put a Smile on Your Face - Coldplay
I'm Shipping Up To Boston - Dropkick Murphys
Everything to Everyone - Everclear
Famous Last Words - My Chemical Romance
Speed of Sound - Coldplay
From the Inside - Linkin Park *great tempo run!
Living in Your Letters - Dashboard Confessional
Dashboard - Modest Mouse
Hailie's Song - Eminem
The Gift - Angels and Airwaves
This Ain't a Scene, It's an Arms Race - Fall Out Boy
Trip Like I Do - Crystal Method
AM Radio - Everclear
Konstantine - Something Corporate
The War - Angels and Airwaves
Such Great Heights - Postal Service
Down - Blink 182