I'm a junior female Computer Science major, and I went to one of these girls-only engineering camps way back in junior high. And it was a blast. The camp I went to was a "fun camp"- we explored concepts of logic, fractals, chemistry, aerodynamic design, and other engineering topics, in a very fun, hands-on way. I was already interested in programming before going to the camp, but to see other girls also have an interest in science, get excited about the same things that our other girlfriends considered 'nerdy'- that was worth going. It was encouraging. Also, at the beginning of my freshman year of college, I read the book mentioned in the article, Unlocking the Clubhouse: Women in Computing by Jane Margolis and Allan Fisher, and it really hit home. It explains why girls do or don't get into computers, and what discourages them away from it. Ideas explained in it have definitely helped me get through my studies- when I get discouraged because I feel I can't 'talk shop' the same, or do as well as the guys, which is only sometimes true, I'm glad I read this book and understand the psychological differences and different motivations for being in the field- and then I don't give up at it. I've also had fun through the last couple years, encouraging other girls to not get discouraged in their computer science classes. It's mostly worked.