"MindTouch Dream is a .NET REST framework for developing lightweight, highly decoupled web-services.  It runs on Microsoft .NET 2.0 and Novell Mono 1.2.2."
http://wiki.opengarden.org/Dream

"Spring.NET is an open source application framework that makes building enterprise .NET applications easier. Providing components based on proven design patterns that can be integrated into all tiers of your application architecture,Spring helps increase development productivity and improve application quality and performance..."
http://www.springframework.net

Free Professional Edition
Get a freeware continuous integration server with lots of possibilities for delivering high-quality software.
http://www.jetbrains.com/teamcity/

"Mingle is a project collaboration and management tool for Agile software development.
It adapts to the way a project team thinks and works, enabling them to get work done and deliver results more quickly."
http://studios.thoughtworks.com/mingle-project-intelligence

Professional development. Mentors.
http://devlicio.us/blogs/billy_mccafferty/archive/2007/11/12/standing-on-the-shoulders-of-giants.aspx

• http://www.agilejournal.com/magazine.html
• http://www.infoq.com

http://geekswithblogs.net/paulwhitblog/archive/2007/07/20/114076.aspx

http://www.chilkatsoft.com/faq/DotNetStrToBytes.html

Creating a web service for an InfoPath form in 25 easy steps
http://blogs.msdn.com/philoj/archive/2005/11/08/490200.aspx

Developing InfoPath Forms for Anonymous Access
http://www.paylasimnoktasi.com/en/anonymousinfopathforms.aspx

All About SharePoint - S.S. Ahmed - MVP Microsoft SharePoint
http://www.sharepointblogs.com/ssa/default.aspx

Programmatically create an InfoPath form from scratch using a Console application and C# code
http://enterprise-solutions.swits.net/infopath2007/programmatically-create-infopath-form-console-app.htm

http://dev2dev.bea.com/alservicebus/

http://www.versionone.com/communityedition.asp

This tool proved to be pretty handy -->
http://www.codeproject.com/KB/database/DataMigrationApplication.aspx

ScrewTurn Wiki is a fast, powerful and simple ASP.NET wiki engine, installs in a matter of minutes and it's available in different packages, fitting every need. It's even free and opensource.
http://www.screwturn.eu/

Nice presentation
http://udidahan.weblogs.us/2008/01/07/presentation-files-asynchronous-systems-architecture-for-the-web/

http://www.infoq.com/articles/patrick-smacchia-interview

Google Chart API --> http://code.google.com/apis/chart/
Google Analytics --> http://www.google.com/analytics/

TimeSnapper is an Automatic Screenshot Journal.
It runs in the background of your computer, taking screenshots of your desktop every few seconds all week long.
http://timesnapper.com

NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution.
http://nsis.sourceforge.net

PADGen --> http://www.asp-shareware.org/pad/padgen.php

Eric Sink's book --> http://www.ericsink.com/bos/Business_of_Software.html

Podcast on the topic from Scott --> Hanselminutes Podcast 47 - How to start your own MicroISV

25 steps on secreetgeek.net --> http://secretgeek.net/25steps.asp

I recommend comprehend the material in the order listed here. Book give you reqlly good base, espeacially if you don't have a business degree. Leon Bambrick in his interview and his blog gives some practical perspective.

The Ruby Way: Solutions and Techniques in Ruby Programming, Second Edition
by Hal Fulton
Publisher: Addison Wesley Professional
Pub Date: October 25, 2006
Print ISBN-10: 0-672-32884-4
Print ISBN-13: 978-0-672-32884-8
Pages: 888
http://techbus.safaribooksonline.com/0768667208

patterns & practices April 2007 DVD

http://en.wikipedia.org/wiki/Enterprise_application_integration

http://en.wikipedia.org/wiki/Enterprise_service_bus

http://msdn2.microsoft.com/en-us/arcjournal/default.aspx

http://www.exforsys.com/tutorials/sql-server-2005/maintaining-sql-server-indexes.html

An Overview of XML Support in SQL Server 2005
http://www.15seconds.com/issue/050803.htm

Improving XML Data Access Performance with SQL Server 2005
http://www.15seconds.com/issue/050811.htm

Improving XML Update Performance with SQL Server 2005
http://www.15seconds.com/issue/050818.htm

http://www.infoq.com/articles/spayd-partnership-contract

Pragmatic Programmers is my favorite publisher.
Now they also have a podcasts http://www.pragprog.com/podcasts

http://www.sql-server-performance.com/tips/rebuilding_indexes_p1.aspx