The Chronos Awards nominations close on Sunday 10 January. This means that nominations by post will need to be in the mail by no later than today (and today might already be too late).
To quote : "Also worth noting that while we’ve had many nominations in the pro categories, there have been virtually none in the fan categories."
Please note that there are separate categories for specific fan works (eg artworks or written works such as reviews etc) and for the creators of those works (eg fan artist and fan writer). Full details available at the Continuum 6: Future Tense website.