Best Website in different domain.

Hi Guys,
This is the place we can share information regarding different domain without any interruption. So i am taking one step to make this page more helpful to people.
Each of us are from different domain and internet is filled of lot of new knowledge so please mention your Top 5 websites which can help visitors here:
1. www.howstuffwork.com
2. www.tldp.org
3. www.totalgadha.com
4. www.epaper.timesofindia.com
5. www.allconference.com
Hope you all people like it and proceed it further.