Now in Portland, so reading the Portland news"paper", the Portland Oregonian: Metro maps out MAX's future across Portland
There is a nice website by Portland Metro: Build your high capacity system allowing users to select lines and see the costs. This is an interesting step in public involvement. It would be cooler if people could draw new lines rather than just selecting from potential lines.
Also check
http://www.transportationtown.com
Per the website...
"The objective is to help make information about regional transportation options more accessible and to engage the public in the transportation planning process. "