I am now a part of the small group of people that clicked on a banner ad (intentionally). I found a banner for OptimalSort while browsing boxesandarrows.com
OptimalSort is a neat online card sorting application developed in the land of Middle Earth (New Zealand). There are 30 day, 90 day and annual paid subscriptions and even a free account that just limits your limits your number of active projects, cards & participants. They even have a “hefty discount” for universities and non-profit groups.
What is card sorting?
Card sorting involves a participant(s) being given a stack of cards, often index cards, with some content or functionality written on them. The user is then asked to group these cards into piles that make sense to them. Studying the users choices gives you some insight into their mental model, and allows you organize your content in ways the user will understand.