Well, I promise at least one of these links is post-worthy: The City of Portland's Principal Planner, Steve Dotterrer has put together a fantastic presentation on Portland's transportation history. Through much labor, I embedded Dotterrer's audio to each corresponding slide. The audio is pretty good, but you'll most likely need to download the pdf's to listen. Luckily, its free (thanks City of Portland!) and well worth a listen. The presentation is broken down into seven files for size's sake.
The other link is to a review I wrote of Jeff Mapes' book Pedaling Revolution for the Winter 2009 Oregon Historical Quarterly. Yes, I am a year late in telling my legion of loyal readers about it. I apologize to all four of you.