Some interesting posts...

Top 10 interview questions in WCF
http://www.topwcftutorials.net/2012/06/wcf-top-10-interview-questions.html

Some jQuery questions.
http://www.webdevelopmenthelp.net/2013/09/7-jQuery-Code-Snippet.html

WCF or WebAPI
http://www.topwcftutorials.net/2012/08/WCF-Or-Web-APIs.html

Tracing in WCF
http://www.topwcftutorials.net/2012/06/simple-steps-to-enable-tracing-in-wcf.html

Thanks to the creators of the content.