A few years ago there were only a handful of wireframing tools available, which I found either too cumbersome or too expensive to bother with.

Nowadays it seems that a new app for creating mockups is launched every week. Some of them are excellent, and a welcome addition to the UX toolkit.

Many user experience classicists still prefer a pen and paper, and that’s always a smart place to start. I use pen and paper or Gliffy (Gliffy.com)

via 10 new wireframing tools to help you create rapid prototypes | Econsultancy.