Above: One of the entries on Postsecret.com, which has been shortlisted for the Blooker

When is a book not a book? When it’s a blook, of course.

OK, it might seem a bit of silly word but it does describe an increasingly common process — turning popular blogs into books.

Not only does putting your blog into dead tree form mean that there’s a copy in the British Library, but it brings some coffee table gravitas to the otherwise ephemeral world of the interweb.

And so it is that this year’s Blooker Prize — sponsored by on-demand publisher Lulu — rolls around again.

Oh, and did we say the top prize was worth $US15,000?