gEDA-user: net and netname usage

[Ryan Seal]

I am having a little difficulty understanding the differences between 
the "net" and "netname" attributes. I am currently working on a board 
that uses a variety of voltages and a common ground. Currently, I drop a 
part into the schematic and edit the "net" attribute to override the 
hidden power and ground nets. I am also using a few bus lines to clean 
up the schematic. These bus lines span multiple schematics. Here is my 
question: Should I use the "netname" attribute to label the nets going 
to/from the bus lines? Will they be connected when I generate a netlist? 
Am I doing this properly?

Thanks,
Ryan