Jakob Nielsen on breadcrumbs

Breadcrumbs is good for online navigation. Implement it and you'll delight the users...

• Breadcrumbs show people their current location relative to higher-level concepts, helping them understand where they are in relation to the rest of the site.
• Breadcrumbs afford one-click access to higher site levels and thus rescue users who parachute into very specific but inappropriate destinations through search or deep links.
• Breadcrumbs never cause problems in user testing: people might overlook this small design element, but they never misinterpret breadcrumb trails or have trouble operating them.
• Breadcrumbs take up very little space on the page. (via AlertBox)
  

Made by Monkeys

Electronics Weekly's blog provides some funny and practical examples of bad design for engineers.

Here is an example of bad LEDs fading away...., how to avoid this? Here is one suggestion:

"Georg Bogner, Director, Visible LED Engineering at OSRAM, stresses that engineers should be demanding their vendors to, 'Show me the data.'" via Made By Monkeys

Here is the oldest record that we have in Engineering Village indexed under LED
Integrated optical tamper sensor