#Put into your .vimrc file
#The commands to comment a selection of text are as follows, begining with begining-of-line comments:

,# shell, perl, etc
,/ c
,> email quote
," vim
,% latex, prolog
,! assembly?... add single !
,; scheme
,- don't remember this one... add --
,c clears any of the previous comments

Here are the wrapping comments, each line wrapped individually:

,* c
,( Standard ML
,< html
,d clears any of the wrapping comments