有哪些伟大的开源Visual Basic .net项目需要学习？

I've seen similar questions but I'm not limiting myself to any particular type, I just want to have a wide swath I can look at. They can be oriented towards ASP.net or not. I know Visual Basic.net already, but haven't started to write any actual real pieces of software yet (I have written my own web sites from scratch though).I've seen similar questions but I'm not limitin