For what it’s worth, it was raising property prices as well, which boded well for people who owned homes, construction firms, new home builders, etc. This has now slowed down — we’ll see what happens down the road. Maybe a bit of a repeat of 2004-2006.
I’m not sure if there’s any relation to QE, or just innovation, but the increase in mobile application/web development has been pretty major (IMHO) and can definitely be taken advantage of.