If nanomachines are the dangerous grey goo of the physical, then websites are undoubtedly the grey goo of the informational. And, just as dangerously, they sometimes get people thinking in the right directions...
Which is why you should visit these places:
h+ Magazine Editor's Blog - A blog attached to a zine about the merging of SF and the now.
Shine Anthology Weblog - About optimistic SF (seemingly concerned with near-future varieties).
The Speculist - A blog about... speculation, really. Plenty of multimedia to sink your teeth into, by the looks of it.
Gravity Lens Weblog - A veritable forest of quality links, all served up with very little overhead. Great reading on a slower mobile connection.
Robotic Technology Incorporated - Everything this company wants to do is made of win. Pay special attention to the EATR tech, which is getting some press recently: Story 1, Story 2
And you have to love this quote from one of their recent press releases: "We completely understand the public's concern about futuristic robots feeding on the human population, but that is not our mission."