User Agent Switcher FF Add-ons

I found this add-on useful when testing mobile sites.

http://chrispederick.com/work/user-agent-switcher/

Working with JSon?

These links saved my time

JSONLint to validate your JSon 

json2csharp to convert it to C# objects 

Install Umbraco using Nuget package
very useful link here : http://www.web-garden.co.uk/blog/2013/2/5/how-to-install-umbraco-from-scratch-using-nuget-in-visual-studio

Debugging ASP.NET applications remotely:
http://www.codeproject.com/Articles/38132/Remote-IIS-Debugging-Debug-your-ASP-NET-Applicatio

Extending EPiServer Membership provider

A very good article by epinovia
Part one
Part two

Membase (couchbase)

Use it to share cache between multiple applications (and servers) 
Download:

http://www.couchbase.com/download

http://blog.couchbase.com/membase-server-now-couchbase-server

Scott Hanselman's 2011 Ultimate Developer and Power Users Tool List for Windows

This list is just amazing
http://www.hanselman.com/blog/ScottHanselmans2011UltimateDeveloperAndPowerUsersToolListForWindows.aspx