some imp blogs

 www.mainframes360.com/

http://mainframeqns.wordpress.com/2011/08/29/mainframe-interview-questions-part-1/

http://mainframethebigiron.blogspot.com/2011/12/jcl-interview-questions.html

http://www.codesick.com/interview-questions/mainframe-db2-interview-questions.html#a

http://mainframe230.blogspot.com/2011/03/mainframe-reacent-placement-interview.html

http://www.jobs-interview-questions-and-answers.com/blog/400-mainframe-interview-questions 

http://www.geekinterview.com/question_details/86358

http://www.exforsys.com/forum/98580-what-meant-impact-analysis.html

http://srinimf.wordpress.com/2012/01/05/xpediter-commands/


http://mainframe-faqs.blogspot.com/2008/01/interview-questions-emphasis-how-to.html

http://mainframematerials.blogspot.com/2007/09/cics-about-tables.html

http://eswarchalla.wordpress.com/mainframe-interview-questions/


http://bindubhargavi.blogspot.com/2011/04/mainframe-tutorial.html


http://mainframe-mainframes.blogspot.com/2011/01/cobol-tutorial.html

http://developers-arena.blogspot.com/2010/03/ibm-mainframe-tutorials-jcl-db2-cobol.html 

http://ibm-mainframes-tutorials.blogspot.com/2009/04/basic-concepts-of-job-control-language.html

http://mainframeapplication.blogspot.com/

http://cobol-tutorial.blogspot.com/2011/01/cobol-jobs-in-pune-cobol-jobs-in-mumbai.html