Airlines
http://indian-airlines.nic.in/index.asp(Indian airlines)
http://www.flyairdeccan.net/AirDeccan.htm(Airdeccan)
http://www.flykingfisher.com/(Kingfisher)
http://www.jetairways.com (Jet Airways)
http://goair.in/(Go Air)
http://www.travelguru.com/(Travel Guru)
http://www.yatra.com/(yatra)
http://in.indiatimes.com/
http://india.makemytrip.com/
http://www.xplorz.com/
http://www.cleartrip.com/
http://www4.flightraja.com/bdo
http://www.spicejet.com/
http://book.goindigo.in
http://www.delta.com

Mapping

http://wikimapia.org

System Administration

http://www.microsoft.com/learning
https://www.redhat.com/training/
http://www.faqs.org/faqs/
http://linux-tutorial.info/
http://www.linuxquestions.org/
http://www.opengroup.com/
http://www.samag.com/*
http://sysadminday.com/(sysadminday)

System Administration Institution

http://www.mistltd.com/
http://www.jetkinginfotrain.com/
http://gatestechinfo.com/
http://amrita.ac.in/
http://www.iihnt.com/