Auth, regardless of how long it takes should be built in your app, not farmed to 3rd parties. First fundamental building block of any app and its still, by far,

Auth, regardless of how long it takes should be built in your app, not farmed to 3rd parties. First fundamental building block of any app and its still, by far, NOT the most complicated part of any website. Farming out auth to facebook or Google should be an optional extra, not a mandatory process. I do have a Facebook account but I rarely want to link it to anything else. I'm still upset with StackOverflow for forcing me to use a Google account to log in as I use google Apps which are not yet deemed Google Accounts.