As a (freelance) product manager type person, I spend a fair amount of my time designing wireframes... I LOVE Balsamiq (another wireframing option), Peldi (bal

As a (freelance) product manager type person, I spend a fair amount of my time designing wireframes... I LOVE Balsamiq (another wireframing option), Peldi (balsamiq founder) is a really nice guy and one of my companies even hosts some of their website... but I've moved over to using Mockingbird for my own work. It's that good. If you need to design wireframes, I encourage you to try Mockingbird.