Related Clues:

• www.yahoo.com, e.g.
• Address bar reading
• Log-on need
• Surfer's entry, for short
• Password accompanier
• It often starts with 'http'
•     www bookmark
• It may start 'http://'
• Its common extensions are the theme of this puzzle
• Net address
• Address starting http://
• It starts 'http'
• Modern link, for short
• Link letters
• Online address