The appleseedhq site went under a major overhaul over the last few days: we changed the layout, improved navigation, removed lots of clutter from the main page, and finally added a proper logo!
The logo was designed by Paolo Berto, the founder of /*jupiter jazz*/, the awesome collective of VFX consultants I work for.
Paolo loves designing logos, and a couple days ago he decided it was time this site and more generally the whole appleseed initiative had a proper visual identity. He came forward with several variations on the "apple seeds" theme, and we iterated together until we settled on this very elegant gray and orange five-seed star. The font is the new Ubuntu open source font.
We created several variations of the logo, at different scales, with different color schemes, with and without the text, etc. They are all available for download on the Miscellaneous Downloads page.