Various utilities by and for the open font community.
If you use Ubuntu (or Debian) type: sudo apt-get install open-font-design-toolkit
It's a meta-package that will install (almost) all the revelant tools to do open font design.
Other useful tools include:
Fontaine,
Font::TTF,
Fonttools TTX,
FontMatrix,
FontManager,
Gucharmap,
Freetype ttfautohint,
Graphite,
sfntly,
ots,
fontview,
font-helpers
Funding the open font community - Open Font Library resources - Debian Font Taks Force review.