InfoQ: Dan Allen on Arquillian Testing Framework

Might be an interesting library to consider if you want to go beyond JUnit:
InfoQ: Dan Allen on Arquillian Testing Framework

What are the Free Cloud Services?

As metioned by Xeround:
http://xeround.com/blog/2012/03/free-cloud-services-for-application-developers

Where to find 3D Ribbon Generator?

Can use this to generate a CSS3 ribbon:
http://www.css3d.net/ribbon-generator

How to do XML <-> JSON?

One option found:
http://beckchr.github.com/staxon/

What is kuler?

http://kuler.adobe.com

What are the Date and Time Picker in ExtJS?

There are a few available:

• apleshkov DateTimePicker -  https://github.com/apleshkov/DateTimePicker
• DateTimeField -   http://www.sencha.com/forum/showthread.php?22661-new-version-DateTime-Field
• 
  

What are the Possible Ways to Draw a Timeline Widget?

Nothing come close in ExtJS (.

Possible methods:

1. This will be the first choice if there is no concern on the learning curve. SIMILE Widget - http://www.simile-widgets.org/
2. By Pure CSS Method, as mentioned in Pure CSS Timeline.
3. jQuery Timelinr -  http://www.csslab.cl/2011/08/18/jquery-timelinr/ - if you only need years
4. timeglider -  http://timeglider.com/jquery/  - it's not free for commercial use
5. Finally found something which might just be what we want: CHAP Links Library -  http://links.sourceforge.net/

What are the JSON Library Which Can Be Use in JDK 1.4?

I have found these links:

http://stringtree.org/stringtree-json.html

https://github.com/douglascrockford/JSON-java

http://www.rojotek.com/blog/2009/05/07/a-review-of-5-java-json-libraries/

How to Identify Color Code from Windows Screen?

One of the tool - Instant Eye Dropper
http://instant-eyedropper.com/

Kendo UI? Another ExtJS?

Kendo UI
http://www.kendoui.com/

Interestingly from Telerik