• EELS - ENGINEERING ELECTRONIC LIBRARY, SWEDEN
• Elektronikkatalogen-online
• ELFAs hemsida
• Giant Glossary of Electronic Terminology
• SEK - Svenska Elektriska Kommissionen
• DIREKTRONIK AB - Produktkatalog
• Electronics info page - Tomi Engdahl
• - IEC - CEI - International Electrotechnical Commission - Home Page (English)
• Glossario ENEL
• Scame (elettrico)
• Cooper (el)
• Ljud&Bild
• Electronics symbols
• Dizionario Umts e della rete Wireless