Yes, today’s the day: nominations must be sent to Donna Scott, the Awards Administrator by 23.59 GMT today (Saturday). Don’t forget to include your membership number and/or postcode.
The four nomination-list posts have been updated with additional nominations received as of last night:
Me, I’m going to spend most of today reading short stories, I think…
vector-bsfa.com 
I would like to nominate Ultrameta by Douglas Thompson – my favourite read of 2009!
If you’re a BSFA member, send your vote to the email address in the post — if not, I’m afraid you’re just going to have to hope enough other people have nominated it!