Snipplr is a website where you can store / share your code snippets and find the ones that are already shared by other users.

It is great to find real-world working code examples with an organized interface which saves a lot of time.

Snipplr covers almost every language from ASP, ASP.NET, PHP to Ruby, Django or AS3.

A feature I like is seeing the codes shared by a specific user (nice feature for following users whose coding style is much familiar to you).

Snipplr is absolutely a must-bookmark for a developer.

Umbraco is an open source content management system built with ASP.NET and using MSSQL for storing the data.

Using Umbraco, designers can create valid XHTML with their markup left intact and developers can integrate any .Net based controls out of the box.

Some features of this ASP.NET CMS software:

• Beautiful, user-friendly interface
• Integrated WYSIWYG Editor
• Support for editing in Microsoft Word
• Versioned and scheduled publishing
• Full support for own .NET Controls
• Documented API
• Use any .NET Language like c# or VB.NET
• Full source code available (open source)
• Super simple template engine
• Full support for web standards

This powerful free CMS application will also have reports (for statistics) and form creation features in the near future.

If you need a powerful PDF library for ASP.NET, you may find many paid solutions & it is hard to find a free one.

PDFsharp is an open source PDF library for ASP.NET that makes it possible & easy to create PDF files from any .NET language.

Using PDFsharp you can:

• create new PDF documents with text, lines, curves, images, etc.
• modify, merge, and split existing PDF files or incorporate pages from existing PDF files into new PDF documents.

PDFsharp, which is written completely in C#, includes MigraDoc lite (in German) which gives you more functionality like dealing with a document consisting of sections, paragraphs, tables, charts.

Open source ASP.NET softwares are hard to find as, compared to our labguages, there are only few of them.

dashCommerce is an open source e-commerce software developed with ASP.NET & using Microsoft SQL Server 2005 for storing data.

dashCommerce has a functional interface which lets you navigate through the products with unlimited sub-menus or browse the products by price.

This shopping cart software also offers commercial versions which includes support for the product.

Features:

Inventory Control

• Per Product Inventory
• Per Product Option / Attribute Combination Inventory
• Quick and Easy Inventory Management

Checkout / Order Management

• Order Messages / Email Notifications
• Configurable Tax Rates
• SSL based checkout
• Order Status Change Email Notifications for Customers
• Shipping Tracking
• Drop-In Configurable Tax Providers
• Drop-In Configurable Shipping Providers
• Drop-In Configurable Payment Providers
• Drop-In Configurable Coupon Providers
• Configurable Handling Fees

Supported Providers

• PayPal
• SimpleWeight Shipping Provider
• RegionCode Tax Provider
• Mettle Systems Tax Provider (Real Time, tax tables are updated monthly)*
• USPS (Real Time)*
• UPS (Real Time)*

Other Features

• Content Management
• Extensive Site Settings
• Widgets
• Drop-In Themes / CSS
• Fully Localizable

This Asp.Net Ajax Auto-Complete Control which is created by Matt Berseth works similar to Google Suggest.

After you start typing the keyword, Asp.Net Ajax AutoComplete Control starts to offer you results from the dataset and when the keyword is typed results are filtered according to the keyword.

Code uses AjaxControlToolkit’s AutoComplete extender for suggesting the values.