Shounen-ai (boy's love or BL for short nowadays) 
is a fangirl label (I believe it started for 
magazines and comics). It's much more subtle and 
geared towards angst emotions than the more hard-
core passion of yaoi. 

But yes, it is relationships between two men and 
to "eeew" it is just your personal opinion (but 
that's OK ^_^). It actually has a huge fan base 
among women worldwide, including some lasses here 
on the forum! ^_~

~ Heather (keeper)