Free XML/XSD/XSLT Tools (Updated)

I have tried and used a number of free XML/XSD/XSLT editors and just want to share my experience. If you have a different view or a better free tool to suggest, please let us know.

1. Recommended comprehensive
• XMLPad: a pretty powerful XML/XSD/XSLT editor; providing multiple views for XML content. But sometimes there is ad.
• XMLFox: a nice tool to view and edit XML schemas (and XML content) with multiple views; requires .Net 2.0.
2. Recommended unique
• XPath Visualizer: great tool to test XPath expressions.
• Treebeard: a open source XML/XSLT editor, based on Java. easy for transformation (side by side view); but lack of visual mode and advanced features.
• XML Marker: XML editor, very unique in visualizing XML data using tables, which is very helpful for editing structured relational data.
3. Others
   • Notepad++: a general editor for many languages including XML.
   • EditiX Lite: very nice visual (diagram style) editor; it's good to get XPath
     information for any nodes; based on Java. limitation on the free edition (cannot generate schema).
   • XML Notepad 2007: a basic XML editing tool downloadable from Microsoft; requires .Net 2.0.

Online XSLT transformation tools

1. http://www.shell-tools.net/index.php?op=xslt
2. http://www.w3schools.com/xsl/tryxslt.asp?xmlfile=cdcatalog&xsltfile=cdcatalog

For other tools recommended, see http://jackzheng.net/cubicleh/software/?part=software_b.htm

Who uses ASP.Net?

I am preparing an advanced web development course based on ASP.Net. The first question coming to mind (and probably students want to know) is:

Who uses ASP.Net?

I did a quick research and below is part of the list:
Large company site:

1. http://dell.com/
2. http://www.costco.com/
3. http://www.nestle.com/
4. http://www.jcpenney.com/
5. http://lego.com/
6. http://match.com/
7. http://www.monster.com/
8. http://www.morningstar.com/
9. https://chaseonline.chase.com/
10. http://www.membershiprewards.com/
11. http://www.atlanta-airport.com/
12. http://www.newegg.com/

Governments, institutions, and non-profits

1. https://etax.dor.ga.gov/
2. http://access.wa.gov/
3. http://www.toastmasters.org/

Microsoft affiliate websites

1. http://bing.com/
2. http://asp.net/
3. http://www.codeplex.com/
4. http://www.xbox.com/

Web application frameworks and products built upon ASP.Net

• SharePoint
• DotNetNuke
• ASP.Net MVC
• mojoPortal
• Other smaller ones like: BlogEngine.NET, DasBlog, Gallery Server Pro, nopCommerce

Well, ASP.Net is not just used for websites; it is an enterprise capable technology that is used by many large companies for intranet use and enterprise application development, together with other technologies.
BTW, you can use http://web-sniffer.net/ to see the HTTP header returned from websites. Some of them tell what technology they are based on.