Within 5 minutes of joining Pinterest I knew I was going to be addicted. I can see how it has grown to be the third largest social networking site (after Facebook and Twitter) in a year. Yet, it is different; it carved out a niche: women (80 to 90% of users in the US are women, but 56% of UK users are men). These are women who are involved in the Internet and, ultimately, help decide what becomes the next big thing. They are also soccer moms, feminists, sorority sisters, career women, and activists.