like bla+bla.htm ... I'm currently on dashes, but would like to know for my future projects. Thanks in advance!
altough i found in the meanwhile a comment on mattcutts that +=' ' , i wouldn't mind to hear another opinion! :|
No difference has been reported so far. It doesn't really matter if it's '-', '_' or '+'... However, I find '-' the most logical, good looking and comfortable for the visitor.