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’m slightly odd in that I produce most of my wireframes using Microsoft Excel (well, those columns and rows do make for a nice grid).
These new tools really come into their own when you want to bring other people into the picture, as many of them allow for collaboration.
Anyhow, do check them out, and by all means point at some others in the comments section below.