Arora : Arora is a lightweight cross-platform web browser. It's free (as in free speech and free beer). Arora runs on Linux, embedded Linux, FreeBSD, Mac OS X...
Inkscape : Inkscape is a professional vector graphics editor for Windows, Mac OS X and Linux. It's free and open source.
BLOKK font : BLOKK font gives you a nice fill text for mock-ups and wireframing without the lorem ipsum. The new and better wireframing font.
