Subject Wise Guide Specific / General

http://www.jeywin.com/study-material/
http://www.howtostudy.org/resources.php

More Than

http://www.youtube.com/view_play_list?p=794CD89E216CAB6A

https://www.google.com/search?q=more+than+IAS+IPS

Logical reasoning and analytical ability

http://www.indiabix.com/

General Interpersonal / communication skills

http://personalitydevelopmentinfo.blogspot.com/
http://communicationinformation.blogspot.com/

General Economic And Social Development

http://knoweconomics.blogspot.com/
http://socialentrepren.blogspot.com/

General Time Study and Exam Skill

http://handlingtime.blogspot.com/
http://knowstudying.blogspot.com/
http://examskill.blogspot.com/

Exam Dates / Eligibility

http://www.upsc.gov.in/exams/exams.htm
http://www.onestopias.com/eligibility-criteria.asp

Collection of Material

http://www.scribd.com/search?query=ias

How To Prepare for IAS

http://www.indiahowto.com/how-to-prepare-a-study-schedule-for-ias-exam.html
http://www.rxpgonline.com/article674.html

Site / Interview with IAS Topper

http://ias.nic.in/
http://www.srikumar.com/education/ias_topper.htm

Blogs

http://blog.competitionexam.com/
http://iasplanner.blogspot.com/
http://visionias.wordpress.com/
http://upsc-prelims.blogspot.com/