Integrating Twitter in the .net web application

I got a Website where the r开发者_StackOverflow中文版egistered user can set the set the social net settings.say they can keep connected to the Facebook and Twitter.once this is set whenever the user post a media or comment the tweet or posts will be send to Facebook and Twitter respectively. I implemented the Signin with TWitter with OAuth.My pain points are these 1)Need to stop redirecting the application to Twittwer on click of sign in. For this I can open it in a pop up.still post auth the popup window itself gets redirected to the call back url,so I have 2 windows with same content. 2)need to know how to post tweets whenever user share a media or comments in my site

Thanks for your time and help

I would recommend using TweetSharp, it has examples of how to post tweets etc ...

Once you have familiarised yourself with TweetSharp, if you have some more specific questions, then post them here.