Here are a few links that I like (or dislike) or seem to have liked (or disliked) at some point of time. The links are not sorted in any order and I am not responsible for any material on any of these pages!

1. DRDO, my employer: http://www.drdo.org/
2. Indian Institute of Science: http://www.iisc.ernet.in/
3. Bharat Rakshak: http://www.bharat-rakshak.com/
4. ArXiv ePrint Archive: http://www.arxiv.org/
5. Directory of Open-Access Journals: http://www.doaj.org/
6. National Conference on Nonlinear Systems and Dynamics, India: http://www.ncnsd.org/
7. Institution of Electronics and Telecommunication Engineers: http://www.iete.org/
8. Institute of Electrical and Electronics Engineers: http://www.ieee.org/
9. Spread Spectrum Scene Online: http://sss-mag.com/
10. International Society for Complexity, Information and Design: http://www.iscid.org/
11. GaianXaos X-Talks: http://www.gaianxaos.com/
12. Soumitro Banerjee's Home: http://www.ee.iitkgp.ernet.in/~soumitro/
13. Soumyajit Mandal's Home: http://riotact.mit.edu/
14. JC Sprott's Home: http://sprott.physics.wisc.edu/sprott.htm
15. Kalpana's World: http://justkalpana.googlepages.com/
16. Wikipedia: http://en.wikipedia.org/wiki/Main_Page
17. Wolfram MathWorld: http://mathworld.wolfram.com/
18. Wolfram Functions: http://functions.wolfram.com/
19. Amatuer Astronomy - Northern Constellations: http://www.slivoski.com/astronomy/index.htm
20. Dibon Smith's Constellations Page: http://www.dibonsmith.com/
21. Absolute Astronomy: http://www.absoluteastronomy.com/
22. Synaptic Systems - Astronomy Page: http://www.synapticsystems.com/sky/astron.htm