Attitudes are definitely changing...I've had the opportunity to do some research (purely professional :-) There are 8.5 million women in the US who id themselves as homo- or bi-sexual.
...my partner & I have music cd of traditional love songs targetted to lesbains. The songs are love songs traditionally sung by a man to a woman, here sung Woman To Woman (the name of the cd). Homosexual women are different from homosexual men. For example, the women tend to live in more rural areas and be in longer lasting relationships. I don't want to be commercial, but if you are interested in hearing some demo clips for the cd, go to http://www.comptonandbennett.com/w2w/listen.html.
Keep the taboos falling, I say! ...and love the one you're with!