Both upon registration and/or user editing later on, how could one give the user the ability to link his acccount with a plethora of social networks such as Facebook, LinkedIn, Skype, Google+, Twitter, etc?
I am not looking for an oAuth solution to (just) log in or register with one of the afforementioned accounts instead of a standart drupal one, I am looking for a way to give the user the ability to log in and/or register with either one of those accounts.
Is that technically possible? If yes, is there a one-in-all solution modulewise?
EDIT: to give some extra clarity, the ability to link your social networks' account(s) is a requirement upon registration too. Something like a "field-like" behaviour that will somehow store the connection with the social network account. Kinda blunt but you get the idea.