Disqus seems to be on a tear - congratulations to them. <cynical rant> Of the big internet companies, which of them develop features in-house and don't rely u

Disqus seems to be on a tear - congratulations to them. <cynical rant> Of the big internet companies, which of them develop features in-house and don't rely upon external plugins/apis? Facebook (photos, comments, feeds, ads, login) Google (everything!) - in fact they try to export their logins/search/"Like" etc to other sites perhaps because they see the immense value of keeping control over this information. Yahoo, meanwhile, has apparently outsourced or "plugged-in" third party providers for just about everything from dating to real estate - and at the end of the day they gave away too much and are left with nothing. Perhaps this is the way things go now, but where are the other paranoid developers that want to hoarde all their interactions and user data and keep it to themselves in order to build up a competitive advantage? </cynical rant>