Overheard a gate agent this morning at Chicago saying next week they are starting a new boarding process similar to the airlines, using boarding passes. Maybe this is old news, but it's the first I have heard of it.
A couple of times when making reservation I have noticed adding Business Class caused the base fare to increase. This happened on the Lincoln (Illinois) service.
For example I was doing a trip from Alton, IL (ALN) to Staples MN (SPL); 302 connecting to 7 in Chicago. Base fare before adding...