Top Medical Sites for Students

1. www.nlm.nih.gov/medlineplus
2. www.dana.org/brainweb
3. www.medicinenet.com
4. www.freemedicalhelpline.com
5. www.medhelp.org/
6. www.healthlibrary.com
7. www.doctors-pro.com
8. www.webhealthcentre.com

Top Engineering Sites for Students

1. www.engineeringtalk.com
2. www.ieee.org
3. http://www.engineergirl.org
4. http://vitchennai.wordpress.com/
5. www.ietf.org
6. www.escience-etf.ac.uk
7. www.engineeringjobs.com

Top Ebook's Sites

1. www.eserver.orgs
2. www.amazon.com
3. www.allreaders.com
4. www.loc.gov (Library Of Congress)
5. www.netlibrary.com
6. www.rarebooks.org

Top Photography Sites for Photographers

http://flickr.com               // A project by Yahoo which is highly popular
http://shutterfly.com        // Very Old photo site, popular among students
http://smugmug.com       // Support various design tools and other features
http://fotki.com               // Smooth interface, can add bulk of personal photos
http://beamingpixel.com // Stunning high quality site where photographers can add their Pics.