The Economist article was out in print Saturday I think. That has created a lot of buzz in mainstream circles. I'm not very surprised about this rise and I think it's just the beginning. I tweeted quite a bit yesterday and thanks to the article a major Finnish economy magazine is very likely making a big article on Bitcoin. Lots of long-time-interested-but-skeptical people seem to be turning their attention to Bitcoin right now and they seem to be more convinced that it has to be taken more seriously.
I don't know about elsewhere but I'd imagine that an article like that (it was neutral-positive) in a very respectable magazine will get a lot of attention. Literally truckloads of new money is coming in right now. This is the best possible press we could hope for.
Here is the article btw:
https://bitcointalk.org/index.php?topic=113495.0Yes, tell your neighbors, tell your friends, tell everyone about bitcoins to no end!