下面是开源或免费的ASP.NET web应用列表 ，包含了电子商务，论坛，博客系统，Email系统等各个方面，如果需要用ASP.NET架设web应用可以考虑它们。如果你还知道其他开源ASP.NET web应用，请留言。
电子商务/在线购物网站 e-Commerce / Online Shopping Carts
- Dash Commerce - http://dashcommerce.org/
- Dot Shopping Cart - http://www.dotshoppingcart.com/
- VevoCart - http://www.vevocart.com/
- e-Shop ASP.NET - http://fkn1337.com/e-shop-aspnet-mysql-script/
- PressTopia Shop - http://presstopia.com/dnn/Default.aspx?tabid=236
内容管理系统 Content Management Systems
- *Umbraco - http://umbraco.org/
- *DotNetNuke - http://www.dotnetnuke.com/
- The Beer House - http://www.codeplex.com/Wiki/View.aspx?ProjectName=TheBeerHouse
- My Web Pages Starter Kit - http://www.codeplex.com/MyWebPagesStarterKit/
- Basic CMS - http://www.basic-cms.com/
- JMD CMS - http://www.codeplex.com/JMDCMS/
- Nickel & Dime CMS - http://ndcms-net.sourceforge.net/
- Nolior EZNews - http://sourceforge.net/projects/nolioreznews/
博客系统 Blogs / Blogging
- *Blog Engine .NET - http://www.dotnetblogengine.net/
- DasBlog - http://www.dasblog.info/
- *Sub Text - http://www.subtextproject.com/
- PressTopia - http://presstopia.com/dnn/Default.aspx?tabid=160
链接目录 Link Directories
- *(ASPLD) ASP.NET 3.5 Link Directory - http://www.n3o.co.uk/software/aspld.aspx
- XD Link Directory - http://www.ex-designz.net/softwaredetail.asp?fid=835
- ASP.NET 2.0 Link Directory - http://www.davemackey.net/Applications/LinkDirectory/tabid/88/Default.aspx
客户关系管理系统Customer Relationship Management (CRM)
- Splendid CRM - http://www.splendidcrm.com/
Wiki系统 Wiki's
- FlexWiki - http://www.flexwiki.com/
- *ScrewTurn Wiki - http://www.screwturn.eu/Default.aspx?Page=Wiki&AspxAutoDetectCookieSupport=1
论坛/门户/互联网系统 Forum / Portals / Networks
- *Kigg (Digg like application) - http://www.codeplex.com/Kigg
- Club Starter Kit - http://www.codeplex.com/ClubStarterKit/
- Drop Things (Web 2.0 Portal) - http://www.dropthings.com/
- Yet Another Forum - http://www.yetanotherforum.net/
- DMG Forum - http://www.dmgforums.com/
招聘和求职系统 Recruitment / Job Systems
- Job Site Starter Kit - http://www.binaryintellect.net/articles/a203c824-aec1-41b7-b3ec-49a15d5c9ebb.aspx
- Stock / Inventory Tracker - http://itracker.df-software.com/download.aspx
网站/Email系统 Web / E Mail
- DotNet Open Mail - http://dotnetopenmail.sourceforge.net/
- qqMail - http://www.umailcampaign.com/mailcom.aspx
- Sharp Web Mail - http://anmar.eu.org/projects/sharpwebmail/
图片和视频收藏系统 Image & Video Galleries
- Media Library Starter Kit - http://www.asp.net/downloads/starter-kits/media-library/
- ASP.NET Foto Gallery - http://www.pentabyte.de/software/WebControls/
- gPhotoNet - http://www.thezeal.com/software/index.php?gPhotoNet
Classifieds
- Classifieds Starter Kit - http://msdn.microsoft.com/en-us/cc533489.aspx
- Dating .NET - http://www20.brinkster.com/joemay7/
Misc
- ASP.NET Small Business Web Site Starter Kit - http://msdn.microsoft.com/en-us/cc533514.aspx
- ASP.NET Personal Web Site Starter Kit - http://msdn.microsoft.com/en-us/cc533486.aspx
- Time Tracking Website - http://msdn.microsoft.com/en-us/cc533488.aspx
- DinnerNow (Food Ordering System) - http://www.dinnernow.net/