help me to seek a site

can you help me to seek asome good sites for electronics circiuts and design .
i am a student working on a project on electrical noise can you guide me some good sites where i can find circuit design for myself .thankyou for reading my request.

Check out these sites:

**broken link removed**
http://www.discovercircuits.com/list.htm
http://www.commlinx.com.au/schematics.htm
http://www.epanorama.net/index.php