OK, so you're on the east side...If you're around on Friday check out Upright Brewing
. Doing some great stuff with Saison Yeast and open fermenters. tasting room is only open Friday - Sunday and the evenings where there's a home Blazer Game.
The Widmer Gasthaus
is a MAX ride away.
Horsebrass has been mentioned. Probably a cab ride for you (I dont' know the bus lines too well).
On the west side you can hop on the MAX and street car and hit up Deschutes, Rogue, Bridgeport (all within a few blocks of each other).
Hop in a cab and head over to Hopworks
if you can.
You've also got Roots, Lucky Lab and a few McMenamins in the area.
Or if you're looking for a guide, let us know. Maybe we can get a few PDX HBTers together and do a little crawl.
PS:...Migration Brewing just opened up 2 weeks ago and finally has their first beer on tap (they'll be doing "guest taps" until they can fill it out with their own).