PDX Bus application (TriMet Bus System) and Find Craft Beer application for your iphone, touch or droid and make your own tour. Another one to consider, is stay the McMennamins White Eagle and do a walking tour of the pubs is the Mississippi District (Widmer, Prohst, Amnesia, 5th Quadrant, Hop Works, Interurban) and then you can take the Max to downtown and hit Deschutes, Rogue, Rock Bottom, and Full Sail.