Earlier I have seen Dmitry Motevich’s post 15 QTP sites/blogs/groups/forums. Similarly I have listed for Silktest.

1. SQA Forums
   Initially it was QAForums. Many silktest users are participating here. You can find manysilktest expertise in this forum. It is having more than 50k posts and sample code.
2. Borland Support 
   Tool vendor’s support site. Recently borland made compulsory service contract to access Knowledgebase articles and silktest community. It has plenty of usefull KB articles.
3. Silktest FAQ & Tips 
   Great blog for Silktest FAQ and tips. It has detailed solutions for common silktest issues.
4. Silktest and Automation Tips 
   Here user can find Silktest tips, code and automation tricks. Also covering advanced features of Silktest.
5. Silktest tips 
   One more good blog with limited posts.
6. Silktest Yahoo groups
   It is the only active Silktest yahoo groups. One can find many expertise here.
7. Silktest Tutorial
   Having detailed tutorials for Silktest.
8. Silktest on QACampus
   Few more Silktest information is shared here.
9. Darshan’s blog 
   Contains mixed of silktest and python posts.
10. CSDN blog (俺的博客，原silktest中文站)
    Many posts are in Chinese language. Has covered most of the silktest features.

Also I would like to mention few popular silktest sites, which are not available now. Many of you would have seen Bret Pettichord’s Software Testing Hotlist. But most of the Silktest links are not exist today. All of them having fundamental and advanced concepts of Silktest. Also they have shared 4test sample code and white-papers.

Jeff Hemsley-OOPs and Classes concepts
Non-exist Link: http://www.weirdness.org/jeff/articles/a_classes.html
Current Page: Classes, Objects, Dynamic Instantiation and Constructors: Is 4Test Really an Object-Oriented Language? 

Tony Venditti’s Silk Automation Page
Non-exist Link: http://www.iris.com/web/irisdevs.nsf/c404f3f7c0cc20458525618c00633c15/f41c9c2b9b8dc4508525666700747f56?OpenDocument
Info about him: IBM page

Silktest White Papers – ameliortech 
Non-exist Link: http://www.ameliortech.com/stuff/toolkits/ST/st_whpap.htm

4Test Hints and Tips 
Non-exist Link: http://www.testmap.com/4test/4test_support.htm

Automation Expertise Tutorials
Non-exist Link: http://www.automationexpertise.com/Tutorials/SilkOrganizer/pages/Parent.htm

Mr. Cluey’s Kludge Page 
Non-exist Link: http://www.sqa-test.com/mr_cluey/

Automation on Quality Tree website 
Non-exist Link: http://www.qualitytree.com/autotest/qapartner.htm

Automation Junkies
Non-exist Link: http://www.automationjunkies.com/resources/experts.shtml

I think that I can put them here, If I am able to retrieve those missed pages from my storage or from others. What do you say?