Lots of Known Space aficionados frequent this blog.
Especially if you're one of them, here's a stunning short video I happened upon, inspired by early portions of -- by my colleague, Larry Niven -- the novel Ringworld. Seriously cool. (And if you haven't read Ringworld ... you should. It's won about every SF award there is.)
I hope there will be a Part 2.
On a terrestrial scale, I was tickled to see my upcoming near-Earth technothriller, Energized, on io9's fairly exclusive list, All The Science Fiction and Fantasy Books We’re Dying to Read in 2012. It's not every day I get to rub (figurative) shoulders with Stephen King, Rob Sawyer, William Gibson, and the other luminaries on the list.
And to move even farther down the scale of things, to nanotech -- and not fictional -- consider molecular-scaled batteries.