I love seminars. For real, no sarcasm. I go religiously, and I expect everyone in my group to show up every week unless they have a good excuse. There are so many times that I learn things in (seemingly unrelated) seminars that open up new ways to think about our research. New techniques, new insights ... all the new things!
This is why I take my seminar series committee appointment so seriously. It's not just for me - I want to make sure that every seminar is awesome. I want to make sure that we bring in a diverse group of speakers - diverse in research topic, in race/ethnicity, in what institutions they work, etc.
My diversity goal is a little selfish - I want to hear ALL the coolest things. But also, I believe that it is very important to have a diverse seminar series for the graduate students. I want students to see that lots of different kinds of people can be successful and do cool things. One easy way to start on the path to this goal is to make sure that you have a good representation of women and under-represented minorities giving seminars.
The argument I hear a lot is that there just aren't enough "good" women/URM to invite for a seminar. I think this is bullshit - it just is not an ingrained response to think of the non-white-dude. So, a while ago I made a post just to list women that give awesome seminars. I hope you will go add to that list, so everyone can use it. And feel free to add URM speakers, too (regardless of gender)!
I was motivated to post this because Dr. Zen mentioned me on twitter in response to a question about how to pick good seminar speakers. Thank you, Dr. Zen!!