Few days back I came across a very nice & useful website http://stackoverflow.com. As said in about us page 'The only unusual thing we do is synthesize aspects of Wikis, Blogs, Forums, and Digg/Reddit in a way that is somewhat original. Or at least we think so.';

You can ask any questions and I am sure within a few minutes you will get answers. User interface is also very nice and user friendly. You need not register to ask questions but it's good to register. They only support openid authentication. In case you have not got yet you can find lot's of website offering this service. For more info you can visit http://openid.net

Today I came across a very interesting article and would like to share

http://www.instructables.com/id/Homemade-Plastic/

 How: milk contains a protein called casein, which, once reduced with a little vinegar, can be made into a homemade plastic . nice