Free CMS Scripts to run on ASP.net

I came across these websites today (with the help of google search):

1. kentico - http://www.kentico.com/Download-Demo/Free-CMS-for-ASP-NET?utm_source=google&utm_medium=cpc&utm_campaign=G_Free_Edition_Search
   
   
2. monox - http://monox.mono-software.com/?gclid=CP2B9L6fvK8CFQ566wodEXlMhw
   
   
3. http://umbraco.com/
   
   

I haven't got time to download and try them. Still busy with Liferay today. But obviously I must try them ASAP since my clients have been asking me about this for quite some time.