I just stumbled across "GAMERMD83" 's channel (LINK) and was blown away. I'd never seen nor heard of her before now... Not only is she a girl who greatly enjoys Mass Effect but she has approximately 14 hours of discussion on the characters, races, and universe of Mass Effect featured in her channel.
The information and how she presents it is quite interesting so you may want to check it out. I just started through her 4 part (1 hour) series on humanity in ME and learned quite a bit of interesting information and her commentary is great as well.