facebook and twitter in .net

can any one give the demo how to implement facebook like box( single sign - on) and twitter's tweets for a web appli开发者_高级运维cation using .net(c#)

You can read this article about how to implement facebook login in a .net web application. If you want to display tweets on your page, you basically just add some javascript to your page. See the twitter API wiki for more info.

Adding the Facebook like box to your page is really easy, you can check out the Facebook Developers Reference, there's even a 'Get Code' button to get the necessary code.

All you need to do is add a script reference and a <fb:like> tag, all the options are in the above link.