什么是ASP.NET成员资格替代品

In this video Ayende criticizes the host for using asp.net membership. If asp.net membership is not good to use - what is? In the video Ayende did not mention what else you could use but just pointed out that asp.net membership should not be used. Do you know what other good alternatives are out there for asp.net membership? Ayende criticizes the host for us