How to implement OpenId for authentication rather than the custom username/password login that’s been in use up until now. OpenId is a centralized login/authentication mechanism which handles authentication through one or more centralized OpenId providers. These providers live on the Web and are accessed through a forwarding and callback mechanism – you log in at the provider’s site and are then returned to the original starting Url with an authorized user token that uniquely identifies that user to the original site.
Via Integrating OpenID in an ASP.NET MVC Application using DotNetOpenAuth – Rick Strahl’s Web Log
Wiki-OS is the only open-source web OS (online operating system) where anyone can contribute right away like a wiki. It lets you:
Launch applications without installation (in a secure sandbox)
Share applications by embedding them into web pages
Develop Silverlight and .NET applications right from the browser
Allow others to enhance and maintain your application, the wiki way
Watch the 40-second video overview
Access your applications and data from any computer
Wiki-OS simulates an operating system inside your web browser. It lets you to launch rich-client applications without installation and access your data from any computer connected to the Internet. Applications are executed in a sandbox that securely isolates them from the rest, so that your computer is always protected.
Embed applications on your website or blog.
Similarly to how you can put a YouTube video on a website or blog, you can put a Wiki-OS application inside any web page. Just click the "embed" button at the top-right corner of any application and copy/paste the code snippet.
Via What is Wiki-OS? / FAQ