What is WebMatrix?

Agile web development with WebMatrix…

Developing with ASP.NET has the following flavors:

ASP.NET

• ASP.NET Web Pages (simple, fast, light)
• ASP.NET Web Forms (10 yr history)
• ASP.NET MVC (powerful, flexible, agile, strong architecture)

Developer Tools

WebMatrix

Webmatrix is the all-in-one web editor for ASP.NET that complements Visual Studio.

• simple
• fast
• light weight
• supports ASP.NET, PHP, MySQL 
• create, customize, publish
• parts of web matrix
  • Dev tools
  • Web Server
  • Database (SQL Server Express, File based database)
• Scenarios
  • create something from scratch
  • create from folder
  • create from OpenSource app
• Razor – new powerful view engine
• Razor can be extended with helpers
  • @Facebook.LikeButton() – you don’t need to learn the APIs of Facebook
  • Paypal - @SimplePay.Execute(to: <>, amount<>, from:<>)
  • grid, facebook, paypal, twitter, wufoo (form builder), templatemonster.com…
• Razor landing page – mysites, sites from gallery, site from template, site from folder
• to go to admin page go to _admin
• Admin page takes you to the package manager

Visual Studio

• powerful
• flexible
• integrated

Nice msdn article here