What should we do about sexism in the tech industry?

There has been a notable backlash this week. Some examples:

http://www.readwriteweb.com/enterprise/2012/03/how-casual-sexism-put-sqoot-in.php

http://therealkatie.net/blog/2012/mar/21/lighten-up/

http://www.guardian.co.uk/technology/blog/2012/mar/22/technology-women-sexism-question

http://storify.com/charlesarthur/oh-hai-sexism

I work in the tech industry and I honestly don’t think much about it, although it obviously exists. However, I’ve been thinking about it a lot the last few days. I’m interested in getting some other people’s perspectives.

Thoughts?