The fact that Google+ can strongly appeal to a particular niche is a good sign. I don't know of any massively-viral social applications with staying power that didn't begin in a similar fashion.
That said, I don't think programmers are a particularly great niche for eventual viral growth. We're sort of the default niche for every new product in the valley. Whether we can sustain a product until it becomes mainstream is a complete toss-up. It happened with Twitter, but even then, the main catalysts were celebrities like Ashton Kutcher creating profiles.
Compare that to Pinterest, which strongly appeals to women of all ages and locations. Or to early Facebook, which targeted college students. These groups are almost defined by their social behavior and their "mainstream-ness". College students get older, leave college, and become hair stylists/grocery baggers/whatever kids are going to school for these days, where they make even more social connections.
So I'm curious how G+ can exploit the particular niche(s) they've had success with. I doubt they'll be able to do it well by simply parroting Facebook's features.
That said, I don't think programmers are a particularly great niche for eventual viral growth. We're sort of the default niche for every new product in the valley. Whether we can sustain a product until it becomes mainstream is a complete toss-up. It happened with Twitter, but even then, the main catalysts were celebrities like Ashton Kutcher creating profiles.
Compare that to Pinterest, which strongly appeals to women of all ages and locations. Or to early Facebook, which targeted college students. These groups are almost defined by their social behavior and their "mainstream-ness". College students get older, leave college, and become hair stylists/grocery baggers/whatever kids are going to school for these days, where they make even more social connections.
So I'm curious how G+ can exploit the particular niche(s) they've had success with. I doubt they'll be able to do it well by simply parroting Facebook's features.