RadioTime is a cool site which lists most of the Portland area stations that offer an online stream. It is nice to access all the stations from one page.

http://radiotime.com/search/97201/Portland_OR.aspx

If you want to search other markets or by format, here's their main page.

http://radiotime.com/

That's interesting, they list The Game as "Top 40-Pop;" Charlie, KRRC, Radio Oregon, KLYC, and La GranD as "Adult Contemporary;" KXL is noted as "Conservative," and KBPS-AM is listed as "Classical!"

This from All Access:

-----------------Entercom Stream Stations Via FlyTunes-----------------

ENTERCOM has pacted with FLYTUNES to deliver streams of its PORTLAND radio stations to mobile phone users. Beginning TODAY, streams of KGON, KWJJ, KNRK and KNRK 94/7 TOO (an HD version of 94.7 FM featuring Northwest bands only) can be heard onApple iPHONES and iPOD TOUCHES. All of ENTERCOM/PORTLAND’s stations will be using FLYTUNES by the end of AUGUST. The service will also be configured for Blackberry and other mobile smart phone devices.

ENTERCOM’s stations are the first in the PORTLAND market to use this new technology. "ENTERCOM takes pride in being a pioneer in providing digital options to its millions of listeners around the country," VP/Digital SANDY SMALLENS said. "FLYTUNES is clearly a leader in delivering high-quality mobile broadcast streams, and we are excited to be the first terrestrial broadcast group to join this rapidly growing network."

After registering at flytunes.fm, users can listen to stations by selecting them from the FLYTUNES "Cities" guide, or selecting by genre or artist. Currently over 650 channels of content, including music, local and national news, weather, video and podcasts, are available for listening for free.

I've been informed that CBS Radio has had this.

I've just got to get out more and quit playing with my Walkie Talkie!

http://daol.aol.com/software/mac/iphone/radio

I have a "favorites" link to www.radio-locator.com in my browser. It's got links to over 10,000 radio station web pages and over 2500 audio streams from radio stations in the U.S. and around the world. You can search by call letters, country, zip code, & format.

My favorite:
http://www.thestreamcenter.com/