Google: Focus on the User
As long as Twitter (and Facebook even more so) don't allow Google to actually index them fully, I don't think that a service like the one outlined here would work very well.<p>And even once these services open up more: At what point would you set the threshold for inclusion of $social_network in the list? I certainly would not want a list of various social network batches under every search result.<p>Only list the ones the user is active in? Sure. But how do you determine "active"? Networks in which the user posts a lot? In which he reads a lot of other users content (how would Google find out about that?)?<p>The integration as it is currently made for G+ basically only works because Google has all that G+ profile data and for it to work as well with other networks, I'd say, Google needs specialized access to it.<p>Or to be more cynical: So twitter wants to have their accounts integrated into the search results of a search engine? Easy: Just create a search engine too and have all of Google's user switch over.